Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* mg.c |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
cbdf9ef8 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others |
79072805 LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
12 | * "Sam sat on the ground and put his head in his hands. 'I wish I had never | |
13 | * come here, and I don't want to see no more magic,' he said, and fell silent." | |
79072805 LW |
14 | */ |
15 | ||
ccfc67b7 JH |
16 | /* |
17 | =head1 Magical Functions | |
166f8a29 DM |
18 | |
19 | "Magic" is special data attached to SV structures in order to give them | |
20 | "magical" properties. When any Perl code tries to read from, or assign to, | |
21 | an SV marked as magical, it calls the 'get' or 'set' function associated | |
22 | with that SV's magic. A get is called prior to reading an SV, in order to | |
ddfa107c | 23 | give it a chance to update its internal value (get on $. writes the line |
166f8a29 DM |
24 | number of the last read filehandle into to the SV's IV slot), while |
25 | set is called after an SV has been written to, in order to allow it to make | |
ddfa107c | 26 | use of its changed value (set on $/ copies the SV's new value to the |
166f8a29 DM |
27 | PL_rs global variable). |
28 | ||
29 | Magic is implemented as a linked list of MAGIC structures attached to the | |
30 | SV. Each MAGIC struct holds the type of the magic, a pointer to an array | |
31 | of functions that implement the get(), set(), length() etc functions, | |
32 | plus space for some flags and pointers. For example, a tied variable has | |
33 | a MAGIC structure that contains a pointer to the object associated with the | |
34 | tie. | |
35 | ||
ccfc67b7 JH |
36 | */ |
37 | ||
79072805 | 38 | #include "EXTERN.h" |
864dbfa3 | 39 | #define PERL_IN_MG_C |
79072805 LW |
40 | #include "perl.h" |
41 | ||
5cd24f17 | 42 | #if defined(HAS_GETGROUPS) || defined(HAS_SETGROUPS) |
188ea221 CS |
43 | # ifndef NGROUPS |
44 | # define NGROUPS 32 | |
45 | # endif | |
b7953727 JH |
46 | # ifdef I_GRP |
47 | # include <grp.h> | |
48 | # endif | |
188ea221 CS |
49 | #endif |
50 | ||
17aa7f3d JH |
51 | #ifdef __hpux |
52 | # include <sys/pstat.h> | |
53 | #endif | |
54 | ||
e69880a5 CB |
55 | Signal_t Perl_csighandler(int sig); |
56 | ||
23ada85b | 57 | /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ |
85b332e2 | 58 | #if !defined(HAS_SIGACTION) && defined(VMS) |
23ada85b | 59 | # define FAKE_PERSISTENT_SIGNAL_HANDLERS |
85b332e2 | 60 | #endif |
2e34cc90 | 61 | /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ |
7719e241 | 62 | #if defined(KILL_BY_SIGPRC) |
2e34cc90 CL |
63 | # define FAKE_DEFAULT_SIGNAL_HANDLERS |
64 | #endif | |
85b332e2 | 65 | |
35a4481c AL |
66 | static void restore_magic(pTHX_ const void *p); |
67 | static void unwind_handler_stack(pTHX_ const void *p); | |
51371543 | 68 | |
9cffb111 OS |
69 | #ifdef __Lynx__ |
70 | /* Missing protos on LynxOS */ | |
71 | void setruid(uid_t id); | |
72 | void seteuid(uid_t id); | |
73 | void setrgid(uid_t id); | |
74 | void setegid(uid_t id); | |
75 | #endif | |
76 | ||
c07a80fd | 77 | /* |
78 | * Use the "DESTRUCTOR" scope cleanup to reinstate magic. | |
79 | */ | |
80 | ||
81 | struct magic_state { | |
82 | SV* mgs_sv; | |
83 | U32 mgs_flags; | |
455ece5e | 84 | I32 mgs_ss_ix; |
c07a80fd | 85 | }; |
455ece5e | 86 | /* MGS is typedef'ed to struct magic_state in perl.h */ |
76e3520e GS |
87 | |
88 | STATIC void | |
8fb26106 | 89 | S_save_magic(pTHX_ I32 mgs_ix, SV *sv) |
c07a80fd | 90 | { |
455ece5e | 91 | MGS* mgs; |
c07a80fd | 92 | assert(SvMAGICAL(sv)); |
765f542d NC |
93 | #ifdef PERL_COPY_ON_WRITE |
94 | /* Turning READONLY off for a copy-on-write scalar is a bad idea. */ | |
95 | if (SvIsCOW(sv)) | |
96 | sv_force_normal(sv); | |
97 | #endif | |
c07a80fd | 98 | |
685f876f | 99 | SAVEDESTRUCTOR_X(restore_magic, INT2PTR(void*, (IV)mgs_ix)); |
455ece5e AD |
100 | |
101 | mgs = SSPTR(mgs_ix, MGS*); | |
c07a80fd | 102 | mgs->mgs_sv = sv; |
103 | mgs->mgs_flags = SvMAGICAL(sv) | SvREADONLY(sv); | |
455ece5e | 104 | mgs->mgs_ss_ix = PL_savestack_ix; /* points after the saved destructor */ |
c07a80fd | 105 | |
106 | SvMAGICAL_off(sv); | |
107 | SvREADONLY_off(sv); | |
06759ea0 | 108 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
c07a80fd | 109 | } |
110 | ||
954c1994 GS |
111 | /* |
112 | =for apidoc mg_magical | |
113 | ||
114 | Turns on the magical status of an SV. See C<sv_magic>. | |
115 | ||
116 | =cut | |
117 | */ | |
118 | ||
8990e307 | 119 | void |
864dbfa3 | 120 | Perl_mg_magical(pTHX_ SV *sv) |
8990e307 | 121 | { |
e1ec3a88 | 122 | const MAGIC* mg; |
8990e307 | 123 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 124 | const MGVTBL* const vtbl = mg->mg_virtual; |
8990e307 | 125 | if (vtbl) { |
2b260de0 | 126 | if (vtbl->svt_get && !(mg->mg_flags & MGf_GSKIP)) |
8990e307 LW |
127 | SvGMAGICAL_on(sv); |
128 | if (vtbl->svt_set) | |
129 | SvSMAGICAL_on(sv); | |
2b260de0 | 130 | if (!(SvFLAGS(sv) & (SVs_GMG|SVs_SMG)) || vtbl->svt_clear) |
8990e307 LW |
131 | SvRMAGICAL_on(sv); |
132 | } | |
133 | } | |
134 | } | |
135 | ||
954c1994 GS |
136 | /* |
137 | =for apidoc mg_get | |
138 | ||
139 | Do magic after a value is retrieved from the SV. See C<sv_magic>. | |
140 | ||
141 | =cut | |
142 | */ | |
143 | ||
79072805 | 144 | int |
864dbfa3 | 145 | Perl_mg_get(pTHX_ SV *sv) |
79072805 | 146 | { |
35a4481c | 147 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
fe2774ed | 148 | const bool was_temp = (bool)SvTEMP(sv); |
0723351e | 149 | int have_new = 0; |
ff76feab | 150 | MAGIC *newmg, *head, *cur, *mg; |
20135930 | 151 | /* guard against sv having being freed midway by holding a private |
6683b158 NC |
152 | reference. */ |
153 | ||
154 | /* sv_2mortal has this side effect of turning on the TEMP flag, which can | |
155 | cause the SV's buffer to get stolen (and maybe other stuff). | |
156 | So restore it. | |
157 | */ | |
158 | sv_2mortal(SvREFCNT_inc(sv)); | |
159 | if (!was_temp) { | |
160 | SvTEMP_off(sv); | |
161 | } | |
162 | ||
455ece5e | 163 | save_magic(mgs_ix, sv); |
463ee0b2 | 164 | |
ff76feab AMS |
165 | /* We must call svt_get(sv, mg) for each valid entry in the linked |
166 | list of magic. svt_get() may delete the current entry, add new | |
167 | magic to the head of the list, or upgrade the SV. AMS 20010810 */ | |
168 | ||
169 | newmg = cur = head = mg = SvMAGIC(sv); | |
170 | while (mg) { | |
35a4481c | 171 | const MGVTBL * const vtbl = mg->mg_virtual; |
ff76feab | 172 | |
2b260de0 | 173 | if (!(mg->mg_flags & MGf_GSKIP) && vtbl && vtbl->svt_get) { |
316ad4fe | 174 | CALL_FPTR(vtbl->svt_get)(aTHX_ sv, mg); |
b77f7d40 | 175 | |
58f82c5c DM |
176 | /* guard against magic having been deleted - eg FETCH calling |
177 | * untie */ | |
178 | if (!SvMAGIC(sv)) | |
179 | break; | |
b77f7d40 | 180 | |
ff76feab AMS |
181 | /* Don't restore the flags for this entry if it was deleted. */ |
182 | if (mg->mg_flags & MGf_GSKIP) | |
183 | (SSPTR(mgs_ix, MGS *))->mgs_flags = 0; | |
a0d0e21e | 184 | } |
ff76feab AMS |
185 | |
186 | mg = mg->mg_moremagic; | |
187 | ||
0723351e | 188 | if (have_new) { |
ff76feab AMS |
189 | /* Have we finished with the new entries we saw? Start again |
190 | where we left off (unless there are more new entries). */ | |
191 | if (mg == head) { | |
0723351e | 192 | have_new = 0; |
ff76feab AMS |
193 | mg = cur; |
194 | head = newmg; | |
195 | } | |
196 | } | |
197 | ||
198 | /* Were any new entries added? */ | |
0723351e NC |
199 | if (!have_new && (newmg = SvMAGIC(sv)) != head) { |
200 | have_new = 1; | |
ff76feab AMS |
201 | cur = mg; |
202 | mg = newmg; | |
760ac839 | 203 | } |
79072805 | 204 | } |
463ee0b2 | 205 | |
acfe0abc | 206 | restore_magic(aTHX_ INT2PTR(void *, (IV)mgs_ix)); |
6683b158 NC |
207 | |
208 | if (SvREFCNT(sv) == 1) { | |
209 | /* We hold the last reference to this SV, which implies that the | |
210 | SV was deleted as a side effect of the routines we called. */ | |
0c34ef67 | 211 | SvOK_off(sv); |
6683b158 | 212 | } |
79072805 LW |
213 | return 0; |
214 | } | |
215 | ||
954c1994 GS |
216 | /* |
217 | =for apidoc mg_set | |
218 | ||
219 | Do magic after a value is assigned to the SV. See C<sv_magic>. | |
220 | ||
221 | =cut | |
222 | */ | |
223 | ||
79072805 | 224 | int |
864dbfa3 | 225 | Perl_mg_set(pTHX_ SV *sv) |
79072805 | 226 | { |
35a4481c | 227 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 228 | MAGIC* mg; |
463ee0b2 LW |
229 | MAGIC* nextmg; |
230 | ||
455ece5e | 231 | save_magic(mgs_ix, sv); |
463ee0b2 LW |
232 | |
233 | for (mg = SvMAGIC(sv); mg; mg = nextmg) { | |
e1ec3a88 | 234 | const MGVTBL* vtbl = mg->mg_virtual; |
463ee0b2 | 235 | nextmg = mg->mg_moremagic; /* it may delete itself */ |
a0d0e21e LW |
236 | if (mg->mg_flags & MGf_GSKIP) { |
237 | mg->mg_flags &= ~MGf_GSKIP; /* setting requires another read */ | |
455ece5e | 238 | (SSPTR(mgs_ix, MGS*))->mgs_flags = 0; |
a0d0e21e | 239 | } |
2b260de0 | 240 | if (vtbl && vtbl->svt_set) |
fc0dc3b3 | 241 | CALL_FPTR(vtbl->svt_set)(aTHX_ sv, mg); |
79072805 | 242 | } |
463ee0b2 | 243 | |
acfe0abc | 244 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
245 | return 0; |
246 | } | |
247 | ||
954c1994 GS |
248 | /* |
249 | =for apidoc mg_length | |
250 | ||
251 | Report on the SV's length. See C<sv_magic>. | |
252 | ||
253 | =cut | |
254 | */ | |
255 | ||
79072805 | 256 | U32 |
864dbfa3 | 257 | Perl_mg_length(pTHX_ SV *sv) |
79072805 LW |
258 | { |
259 | MAGIC* mg; | |
463ee0b2 | 260 | STRLEN len; |
463ee0b2 | 261 | |
79072805 | 262 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 263 | const MGVTBL * const vtbl = mg->mg_virtual; |
2b260de0 | 264 | if (vtbl && vtbl->svt_len) { |
35a4481c | 265 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
455ece5e | 266 | save_magic(mgs_ix, sv); |
a0d0e21e | 267 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 268 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 269 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
85e6fe83 LW |
270 | return len; |
271 | } | |
272 | } | |
273 | ||
35a4481c | 274 | if (DO_UTF8(sv)) { |
5636d518 DB |
275 | U8 *s = (U8*)SvPV(sv, len); |
276 | len = Perl_utf8_length(aTHX_ s, s + len); | |
277 | } | |
278 | else | |
279 | (void)SvPV(sv, len); | |
463ee0b2 | 280 | return len; |
79072805 LW |
281 | } |
282 | ||
8fb26106 | 283 | I32 |
864dbfa3 | 284 | Perl_mg_size(pTHX_ SV *sv) |
93965878 NIS |
285 | { |
286 | MAGIC* mg; | |
ac27b0f5 | 287 | |
93965878 | 288 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 289 | const MGVTBL* const vtbl = mg->mg_virtual; |
2b260de0 | 290 | if (vtbl && vtbl->svt_len) { |
35a4481c AL |
291 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
292 | I32 len; | |
455ece5e | 293 | save_magic(mgs_ix, sv); |
93965878 | 294 | /* omit MGf_GSKIP -- not changed here */ |
fc0dc3b3 | 295 | len = CALL_FPTR(vtbl->svt_len)(aTHX_ sv, mg); |
acfe0abc | 296 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
93965878 NIS |
297 | return len; |
298 | } | |
299 | } | |
300 | ||
301 | switch(SvTYPE(sv)) { | |
302 | case SVt_PVAV: | |
35a4481c | 303 | return AvFILLp((AV *) sv); /* Fallback to non-tied array */ |
93965878 NIS |
304 | case SVt_PVHV: |
305 | /* FIXME */ | |
306 | default: | |
cea2e8a9 | 307 | Perl_croak(aTHX_ "Size magic not implemented"); |
93965878 NIS |
308 | break; |
309 | } | |
310 | return 0; | |
311 | } | |
312 | ||
954c1994 GS |
313 | /* |
314 | =for apidoc mg_clear | |
315 | ||
316 | Clear something magical that the SV represents. See C<sv_magic>. | |
317 | ||
318 | =cut | |
319 | */ | |
320 | ||
79072805 | 321 | int |
864dbfa3 | 322 | Perl_mg_clear(pTHX_ SV *sv) |
79072805 | 323 | { |
35a4481c | 324 | const I32 mgs_ix = SSNEW(sizeof(MGS)); |
79072805 | 325 | MAGIC* mg; |
463ee0b2 | 326 | |
455ece5e | 327 | save_magic(mgs_ix, sv); |
463ee0b2 | 328 | |
79072805 | 329 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 330 | const MGVTBL* const vtbl = mg->mg_virtual; |
a0d0e21e | 331 | /* omit GSKIP -- never set here */ |
727405f8 | 332 | |
2b260de0 | 333 | if (vtbl && vtbl->svt_clear) |
fc0dc3b3 | 334 | CALL_FPTR(vtbl->svt_clear)(aTHX_ sv, mg); |
79072805 | 335 | } |
463ee0b2 | 336 | |
acfe0abc | 337 | restore_magic(aTHX_ INT2PTR(void*, (IV)mgs_ix)); |
79072805 LW |
338 | return 0; |
339 | } | |
340 | ||
954c1994 GS |
341 | /* |
342 | =for apidoc mg_find | |
343 | ||
344 | Finds the magic pointer for type matching the SV. See C<sv_magic>. | |
345 | ||
346 | =cut | |
347 | */ | |
348 | ||
93a17b20 | 349 | MAGIC* |
35a4481c | 350 | Perl_mg_find(pTHX_ const SV *sv, int type) |
93a17b20 | 351 | { |
35a4481c AL |
352 | if (sv) { |
353 | MAGIC *mg; | |
354 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { | |
355 | if (mg->mg_type == type) | |
356 | return mg; | |
357 | } | |
93a17b20 LW |
358 | } |
359 | return 0; | |
360 | } | |
361 | ||
954c1994 GS |
362 | /* |
363 | =for apidoc mg_copy | |
364 | ||
365 | Copies the magic from one SV to another. See C<sv_magic>. | |
366 | ||
367 | =cut | |
368 | */ | |
369 | ||
79072805 | 370 | int |
864dbfa3 | 371 | Perl_mg_copy(pTHX_ SV *sv, SV *nsv, const char *key, I32 klen) |
79072805 | 372 | { |
463ee0b2 | 373 | int count = 0; |
79072805 | 374 | MAGIC* mg; |
463ee0b2 | 375 | for (mg = SvMAGIC(sv); mg; mg = mg->mg_moremagic) { |
35a4481c | 376 | const MGVTBL* const vtbl = mg->mg_virtual; |
68795e93 NIS |
377 | if ((mg->mg_flags & MGf_COPY) && vtbl->svt_copy){ |
378 | count += CALL_FPTR(vtbl->svt_copy)(aTHX_ sv, mg, nsv, key, klen); | |
379 | } | |
380 | else if (isUPPER(mg->mg_type)) { | |
33c27489 | 381 | sv_magic(nsv, |
14befaf4 DM |
382 | mg->mg_type == PERL_MAGIC_tied ? SvTIED_obj(sv, mg) : |
383 | (mg->mg_type == PERL_MAGIC_regdata && mg->mg_obj) | |
384 | ? sv : mg->mg_obj, | |
33c27489 | 385 | toLOWER(mg->mg_type), key, klen); |
463ee0b2 | 386 | count++; |
79072805 | 387 | } |
79072805 | 388 | } |
463ee0b2 | 389 | return count; |
79072805 LW |
390 | } |
391 | ||
954c1994 GS |
392 | /* |
393 | =for apidoc mg_free | |
394 | ||
395 | Free any magic storage used by the SV. See C<sv_magic>. | |
396 | ||
397 | =cut | |
398 | */ | |
399 | ||
79072805 | 400 | int |
864dbfa3 | 401 | Perl_mg_free(pTHX_ SV *sv) |
79072805 LW |
402 | { |
403 | MAGIC* mg; | |
404 | MAGIC* moremagic; | |
405 | for (mg = SvMAGIC(sv); mg; mg = moremagic) { | |
35a4481c | 406 | const MGVTBL* const vtbl = mg->mg_virtual; |
79072805 | 407 | moremagic = mg->mg_moremagic; |
2b260de0 | 408 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 409 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 410 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
979acdb5 | 411 | if (mg->mg_len > 0 || mg->mg_type == PERL_MAGIC_utf8) |
88e89b8a | 412 | Safefree(mg->mg_ptr); |
565764a8 | 413 | else if (mg->mg_len == HEf_SVKEY) |
88e89b8a | 414 | SvREFCNT_dec((SV*)mg->mg_ptr); |
d460ef45 | 415 | } |
b881518d JH |
416 | if (mg->mg_flags & MGf_REFCOUNTED) |
417 | SvREFCNT_dec(mg->mg_obj); | |
79072805 LW |
418 | Safefree(mg); |
419 | } | |
b162af07 | 420 | SvMAGIC_set(sv, NULL); |
79072805 LW |
421 | return 0; |
422 | } | |
423 | ||
79072805 | 424 | #include <signal.h> |
79072805 | 425 | |
942e002e | 426 | U32 |
864dbfa3 | 427 | Perl_magic_regdata_cnt(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 428 | { |
35a4481c | 429 | register const REGEXP *rx; |
dd374669 | 430 | (void)sv; |
6cef1e77 | 431 | |
aaa362c4 | 432 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
8f580fb8 IZ |
433 | if (mg->mg_obj) /* @+ */ |
434 | return rx->nparens; | |
435 | else /* @- */ | |
436 | return rx->lastparen; | |
437 | } | |
ac27b0f5 | 438 | |
942e002e | 439 | return (U32)-1; |
6cef1e77 IZ |
440 | } |
441 | ||
442 | int | |
864dbfa3 | 443 | Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg) |
6cef1e77 | 444 | { |
6cef1e77 | 445 | register REGEXP *rx; |
6cef1e77 | 446 | |
aaa362c4 | 447 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
35a4481c AL |
448 | register const I32 paren = mg->mg_len; |
449 | register I32 s; | |
450 | register I32 t; | |
6cef1e77 IZ |
451 | if (paren < 0) |
452 | return 0; | |
eb160463 | 453 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
454 | (s = rx->startp[paren]) != -1 && |
455 | (t = rx->endp[paren]) != -1) | |
6cef1e77 | 456 | { |
35a4481c | 457 | register I32 i; |
6cef1e77 | 458 | if (mg->mg_obj) /* @+ */ |
cf93c79d | 459 | i = t; |
6cef1e77 | 460 | else /* @- */ |
cf93c79d | 461 | i = s; |
727405f8 | 462 | |
a30b2f1f | 463 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
1aa99e6b | 464 | char *b = rx->subbeg; |
0064a8a9 JH |
465 | if (b) |
466 | i = Perl_utf8_length(aTHX_ (U8*)b, (U8*)(b+i)); | |
1aa99e6b | 467 | } |
0064a8a9 JH |
468 | |
469 | sv_setiv(sv, i); | |
6cef1e77 IZ |
470 | } |
471 | } | |
472 | return 0; | |
473 | } | |
474 | ||
e4b89193 | 475 | int |
a29d06ed MG |
476 | Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg) |
477 | { | |
dd374669 | 478 | (void)sv; (void)mg; |
a29d06ed | 479 | Perl_croak(aTHX_ PL_no_modify); |
e4b89193 | 480 | /* NOT REACHED */ |
3c8a6f86 NC |
481 | #ifndef HASATTRIBUTE |
482 | /* No __attribute__, so the compiler doesn't know that croak never returns | |
483 | */ | |
484 | return 0; | |
485 | #endif | |
a29d06ed MG |
486 | } |
487 | ||
93a17b20 | 488 | U32 |
864dbfa3 | 489 | Perl_magic_len(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 LW |
490 | { |
491 | register I32 paren; | |
93a17b20 | 492 | register I32 i; |
dd374669 | 493 | register const REGEXP *rx; |
a197cbdd | 494 | I32 s1, t1; |
93a17b20 LW |
495 | |
496 | switch (*mg->mg_ptr) { | |
497 | case '1': case '2': case '3': case '4': | |
498 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 499 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d | 500 | |
ffc61ed2 | 501 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
93a17b20 | 502 | getparen: |
eb160463 | 503 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
504 | (s1 = rx->startp[paren]) != -1 && |
505 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 506 | { |
cf93c79d | 507 | i = t1 - s1; |
a197cbdd | 508 | getlen: |
a30b2f1f | 509 | if (i > 0 && RX_MATCH_UTF8(rx)) { |
ffc61ed2 | 510 | char *s = rx->subbeg + s1; |
a197cbdd | 511 | char *send = rx->subbeg + t1; |
ffc61ed2 | 512 | |
6d5fa195 | 513 | i = t1 - s1; |
60425c38 JH |
514 | if (is_utf8_string((U8*)s, i)) |
515 | i = Perl_utf8_length(aTHX_ (U8*)s, (U8*)send); | |
a197cbdd | 516 | } |
ffc61ed2 | 517 | if (i < 0) |
0844c848 | 518 | Perl_croak(aTHX_ "panic: magic_len: %"IVdf, (IV)i); |
ffc61ed2 | 519 | return i; |
93a17b20 | 520 | } |
235bddc8 NIS |
521 | else { |
522 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 523 | report_uninit(sv); |
235bddc8 NIS |
524 | } |
525 | } | |
526 | else { | |
527 | if (ckWARN(WARN_UNINITIALIZED)) | |
29489e7c | 528 | report_uninit(sv); |
93a17b20 | 529 | } |
748a9306 | 530 | return 0; |
93a17b20 | 531 | case '+': |
aaa362c4 | 532 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 533 | paren = rx->lastparen; |
13f57bf8 CS |
534 | if (paren) |
535 | goto getparen; | |
93a17b20 | 536 | } |
748a9306 | 537 | return 0; |
a01268b5 JH |
538 | case '\016': /* ^N */ |
539 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
540 | paren = rx->lastcloseparen; | |
541 | if (paren) | |
542 | goto getparen; | |
543 | } | |
544 | return 0; | |
93a17b20 | 545 | case '`': |
aaa362c4 | 546 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
547 | if (rx->startp[0] != -1) { |
548 | i = rx->startp[0]; | |
a197cbdd GS |
549 | if (i > 0) { |
550 | s1 = 0; | |
551 | t1 = i; | |
552 | goto getlen; | |
553 | } | |
93a17b20 | 554 | } |
93a17b20 | 555 | } |
748a9306 | 556 | return 0; |
93a17b20 | 557 | case '\'': |
aaa362c4 | 558 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
559 | if (rx->endp[0] != -1) { |
560 | i = rx->sublen - rx->endp[0]; | |
a197cbdd GS |
561 | if (i > 0) { |
562 | s1 = rx->endp[0]; | |
563 | t1 = rx->sublen; | |
564 | goto getlen; | |
565 | } | |
93a17b20 | 566 | } |
93a17b20 | 567 | } |
748a9306 | 568 | return 0; |
93a17b20 LW |
569 | } |
570 | magic_get(sv,mg); | |
2d8e6c8d GS |
571 | if (!SvPOK(sv) && SvNIOK(sv)) { |
572 | STRLEN n_a; | |
573 | sv_2pv(sv, &n_a); | |
574 | } | |
93a17b20 LW |
575 | if (SvPOK(sv)) |
576 | return SvCUR(sv); | |
577 | return 0; | |
578 | } | |
579 | ||
79072805 | 580 | int |
864dbfa3 | 581 | Perl_magic_get(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 582 | { |
27da23d5 | 583 | dVAR; |
79072805 | 584 | register I32 paren; |
35272f84 | 585 | register char *s = NULL; |
79072805 | 586 | register I32 i; |
d9f97599 | 587 | register REGEXP *rx; |
79072805 LW |
588 | |
589 | switch (*mg->mg_ptr) { | |
748a9306 | 590 | case '\001': /* ^A */ |
3280af22 | 591 | sv_setsv(sv, PL_bodytarget); |
748a9306 | 592 | break; |
49460fe6 NIS |
593 | case '\003': /* ^C */ |
594 | sv_setiv(sv, (IV)PL_minus_c); | |
595 | break; | |
596 | ||
79072805 | 597 | case '\004': /* ^D */ |
aea4f609 | 598 | sv_setiv(sv, (IV)(PL_debug & DEBUG_MASK)); |
79072805 | 599 | break; |
28f23441 | 600 | case '\005': /* ^E */ |
0a378802 | 601 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 602 | #ifdef MACOS_TRADITIONAL |
0a378802 JH |
603 | { |
604 | char msg[256]; | |
727405f8 | 605 | |
0a378802 | 606 | sv_setnv(sv,(double)gMacPerl_OSErr); |
727405f8 | 607 | sv_setpv(sv, gMacPerl_OSErr ? GetSysErrText(gMacPerl_OSErr, msg) : ""); |
0a378802 | 608 | } |
727405f8 | 609 | #else |
28f23441 | 610 | #ifdef VMS |
0a378802 JH |
611 | { |
612 | # include <descrip.h> | |
613 | # include <starlet.h> | |
614 | char msg[255]; | |
615 | $DESCRIPTOR(msgdsc,msg); | |
616 | sv_setnv(sv,(NV) vaxc$errno); | |
617 | if (sys$getmsg(vaxc$errno,&msgdsc.dsc$w_length,&msgdsc,0,0) & 1) | |
618 | sv_setpvn(sv,msgdsc.dsc$a_pointer,msgdsc.dsc$w_length); | |
619 | else | |
620 | sv_setpv(sv,""); | |
621 | } | |
28f23441 | 622 | #else |
88e89b8a | 623 | #ifdef OS2 |
0a378802 JH |
624 | if (!(_emx_env & 0x200)) { /* Under DOS */ |
625 | sv_setnv(sv, (NV)errno); | |
626 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
627 | } else { | |
628 | if (errno != errno_isOS2) { | |
629 | int tmp = _syserrno(); | |
630 | if (tmp) /* 2nd call to _syserrno() makes it 0 */ | |
631 | Perl_rc = tmp; | |
632 | } | |
633 | sv_setnv(sv, (NV)Perl_rc); | |
634 | sv_setpv(sv, os2error(Perl_rc)); | |
635 | } | |
88e89b8a | 636 | #else |
22fae026 | 637 | #ifdef WIN32 |
0a378802 JH |
638 | { |
639 | DWORD dwErr = GetLastError(); | |
640 | sv_setnv(sv, (NV)dwErr); | |
641 | if (dwErr) | |
642 | { | |
643 | PerlProc_GetOSError(sv, dwErr); | |
644 | } | |
645 | else | |
646 | sv_setpv(sv, ""); | |
647 | SetLastError(dwErr); | |
648 | } | |
22fae026 | 649 | #else |
f6c8f21d RGS |
650 | { |
651 | int saveerrno = errno; | |
652 | sv_setnv(sv, (NV)errno); | |
653 | sv_setpv(sv, errno ? Strerror(errno) : ""); | |
654 | errno = saveerrno; | |
655 | } | |
28f23441 | 656 | #endif |
88e89b8a | 657 | #endif |
22fae026 | 658 | #endif |
cd39f2b6 | 659 | #endif |
0a378802 JH |
660 | SvNOK_on(sv); /* what a wonderful hack! */ |
661 | } | |
662 | else if (strEQ(mg->mg_ptr+1, "NCODING")) | |
663 | sv_setsv(sv, PL_encoding); | |
664 | break; | |
79072805 | 665 | case '\006': /* ^F */ |
3280af22 | 666 | sv_setiv(sv, (IV)PL_maxsysfd); |
79072805 | 667 | break; |
a0d0e21e | 668 | case '\010': /* ^H */ |
3280af22 | 669 | sv_setiv(sv, (IV)PL_hints); |
a0d0e21e | 670 | break; |
9d116dd7 | 671 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
672 | if (PL_inplace) |
673 | sv_setpv(sv, PL_inplace); | |
79072805 | 674 | else |
3280af22 | 675 | sv_setsv(sv, &PL_sv_undef); |
79072805 | 676 | break; |
ac27b0f5 | 677 | case '\017': /* ^O & ^OPEN */ |
3511154c | 678 | if (*(mg->mg_ptr+1) == '\0') { |
ac27b0f5 | 679 | sv_setpv(sv, PL_osname); |
3511154c DM |
680 | SvTAINTED_off(sv); |
681 | } | |
ac27b0f5 NIS |
682 | else if (strEQ(mg->mg_ptr, "\017PEN")) { |
683 | if (!PL_compiling.cop_io) | |
684 | sv_setsv(sv, &PL_sv_undef); | |
685 | else { | |
686 | sv_setsv(sv, PL_compiling.cop_io); | |
687 | } | |
688 | } | |
28f23441 | 689 | break; |
79072805 | 690 | case '\020': /* ^P */ |
3280af22 | 691 | sv_setiv(sv, (IV)PL_perldb); |
79072805 | 692 | break; |
fb73857a | 693 | case '\023': /* ^S */ |
4ffa73a3 | 694 | if (*(mg->mg_ptr+1) == '\0') { |
3280af22 | 695 | if (PL_lex_state != LEX_NOTPARSING) |
0c34ef67 | 696 | SvOK_off(sv); |
3280af22 | 697 | else if (PL_in_eval) |
6dc8a9e4 | 698 | sv_setiv(sv, PL_in_eval & ~(EVAL_INREQUIRE)); |
a4268c0a AMS |
699 | else |
700 | sv_setiv(sv, 0); | |
d58bf5aa | 701 | } |
fb73857a | 702 | break; |
79072805 | 703 | case '\024': /* ^T */ |
7c36658b | 704 | if (*(mg->mg_ptr+1) == '\0') { |
88e89b8a | 705 | #ifdef BIG_TIME |
7c36658b | 706 | sv_setnv(sv, PL_basetime); |
88e89b8a | 707 | #else |
7c36658b | 708 | sv_setiv(sv, (IV)PL_basetime); |
88e89b8a | 709 | #endif |
7c36658b MS |
710 | } |
711 | else if (strEQ(mg->mg_ptr, "\024AINT")) | |
9aa05f58 RGS |
712 | sv_setiv(sv, PL_tainting |
713 | ? (PL_taint_warn || PL_unsafe ? -1 : 1) | |
714 | : 0); | |
7c36658b | 715 | break; |
7cebcbc0 | 716 | case '\025': /* $^UNICODE, $^UTF8LOCALE */ |
a05d7ebb JH |
717 | if (strEQ(mg->mg_ptr, "\025NICODE")) |
718 | sv_setuv(sv, (UV) PL_unicode); | |
7cebcbc0 NC |
719 | else if (strEQ(mg->mg_ptr, "\025TF8LOCALE")) |
720 | sv_setuv(sv, (UV) PL_utf8locale); | |
fde18df1 JH |
721 | break; |
722 | case '\027': /* ^W & $^WARNING_BITS */ | |
4438c4b7 JH |
723 | if (*(mg->mg_ptr+1) == '\0') |
724 | sv_setiv(sv, (IV)((PL_dowarn & G_WARN_ON) ? TRUE : FALSE)); | |
0a378802 | 725 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
d3a7d8c7 GS |
726 | if (PL_compiling.cop_warnings == pWARN_NONE || |
727 | PL_compiling.cop_warnings == pWARN_STD) | |
4438c4b7 JH |
728 | { |
729 | sv_setpvn(sv, WARN_NONEstring, WARNsize) ; | |
730 | } | |
d3a7d8c7 | 731 | else if (PL_compiling.cop_warnings == pWARN_ALL) { |
75b6c4ca RGS |
732 | /* Get the bit mask for $warnings::Bits{all}, because |
733 | * it could have been extended by warnings::register */ | |
734 | SV **bits_all; | |
735 | HV *bits=get_hv("warnings::Bits", FALSE); | |
736 | if (bits && (bits_all=hv_fetch(bits, "all", 3, FALSE))) { | |
737 | sv_setsv(sv, *bits_all); | |
738 | } | |
739 | else { | |
740 | sv_setpvn(sv, WARN_ALLstring, WARNsize) ; | |
741 | } | |
ac27b0f5 | 742 | } |
4438c4b7 JH |
743 | else { |
744 | sv_setsv(sv, PL_compiling.cop_warnings); | |
ac27b0f5 | 745 | } |
d3a7d8c7 | 746 | SvPOK_only(sv); |
4438c4b7 | 747 | } |
79072805 LW |
748 | break; |
749 | case '1': case '2': case '3': case '4': | |
750 | case '5': case '6': case '7': case '8': case '9': case '&': | |
aaa362c4 | 751 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
752 | I32 s1, t1; |
753 | ||
a863c7d1 MB |
754 | /* |
755 | * Pre-threads, this was paren = atoi(GvENAME((GV*)mg->mg_obj)); | |
756 | * XXX Does the new way break anything? | |
757 | */ | |
ffc61ed2 | 758 | paren = atoi(mg->mg_ptr); /* $& is in [0] */ |
79072805 | 759 | getparen: |
eb160463 | 760 | if (paren <= (I32)rx->nparens && |
cf93c79d IZ |
761 | (s1 = rx->startp[paren]) != -1 && |
762 | (t1 = rx->endp[paren]) != -1) | |
bbce6d69 | 763 | { |
cf93c79d IZ |
764 | i = t1 - s1; |
765 | s = rx->subbeg + s1; | |
01ec43d0 | 766 | if (!rx->subbeg) |
c2e66d9e GS |
767 | break; |
768 | ||
13f57bf8 | 769 | getrx: |
748a9306 | 770 | if (i >= 0) { |
cf93c79d | 771 | sv_setpvn(sv, s, i); |
a30b2f1f | 772 | if (RX_MATCH_UTF8(rx) && is_utf8_string((U8*)s, i)) |
7e2040f0 GS |
773 | SvUTF8_on(sv); |
774 | else | |
775 | SvUTF8_off(sv); | |
e9814ee1 HS |
776 | if (PL_tainting) { |
777 | if (RX_MATCH_TAINTED(rx)) { | |
778 | MAGIC* mg = SvMAGIC(sv); | |
779 | MAGIC* mgt; | |
780 | PL_tainted = 1; | |
b162af07 | 781 | SvMAGIC_set(sv, mg->mg_moremagic); |
e9814ee1 HS |
782 | SvTAINT(sv); |
783 | if ((mgt = SvMAGIC(sv))) { | |
784 | mg->mg_moremagic = mgt; | |
b162af07 | 785 | SvMAGIC_set(sv, mg); |
e9814ee1 HS |
786 | } |
787 | } else | |
788 | SvTAINTED_off(sv); | |
789 | } | |
748a9306 LW |
790 | break; |
791 | } | |
79072805 | 792 | } |
79072805 | 793 | } |
3280af22 | 794 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
795 | break; |
796 | case '+': | |
aaa362c4 | 797 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
d9f97599 | 798 | paren = rx->lastparen; |
a0d0e21e LW |
799 | if (paren) |
800 | goto getparen; | |
79072805 | 801 | } |
3280af22 | 802 | sv_setsv(sv,&PL_sv_undef); |
79072805 | 803 | break; |
a01268b5 JH |
804 | case '\016': /* ^N */ |
805 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { | |
806 | paren = rx->lastcloseparen; | |
807 | if (paren) | |
808 | goto getparen; | |
809 | } | |
810 | sv_setsv(sv,&PL_sv_undef); | |
811 | break; | |
79072805 | 812 | case '`': |
aaa362c4 | 813 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
814 | if ((s = rx->subbeg) && rx->startp[0] != -1) { |
815 | i = rx->startp[0]; | |
13f57bf8 | 816 | goto getrx; |
79072805 | 817 | } |
79072805 | 818 | } |
3280af22 | 819 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
820 | break; |
821 | case '\'': | |
aaa362c4 | 822 | if (PL_curpm && (rx = PM_GETRE(PL_curpm))) { |
cf93c79d IZ |
823 | if (rx->subbeg && rx->endp[0] != -1) { |
824 | s = rx->subbeg + rx->endp[0]; | |
825 | i = rx->sublen - rx->endp[0]; | |
13f57bf8 | 826 | goto getrx; |
79072805 | 827 | } |
79072805 | 828 | } |
3280af22 | 829 | sv_setsv(sv,&PL_sv_undef); |
79072805 LW |
830 | break; |
831 | case '.': | |
832 | #ifndef lint | |
3280af22 | 833 | if (GvIO(PL_last_in_gv)) { |
357c8808 | 834 | sv_setiv(sv, (IV)IoLINES(GvIOp(PL_last_in_gv))); |
79072805 LW |
835 | } |
836 | #endif | |
837 | break; | |
838 | case '?': | |
809a5acc | 839 | { |
809a5acc | 840 | sv_setiv(sv, (IV)STATUS_CURRENT); |
ff0cee69 | 841 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
842 | LvTARGOFF(sv) = PL_statusvalue; |
843 | LvTARGLEN(sv) = PL_statusvalue_vms; | |
ff0cee69 | 844 | #endif |
809a5acc | 845 | } |
79072805 LW |
846 | break; |
847 | case '^': | |
0daa599b RGS |
848 | if (GvIOp(PL_defoutgv)) |
849 | s = IoTOP_NAME(GvIOp(PL_defoutgv)); | |
79072805 LW |
850 | if (s) |
851 | sv_setpv(sv,s); | |
852 | else { | |
3280af22 | 853 | sv_setpv(sv,GvENAME(PL_defoutgv)); |
79072805 LW |
854 | sv_catpv(sv,"_TOP"); |
855 | } | |
856 | break; | |
857 | case '~': | |
0daa599b RGS |
858 | if (GvIOp(PL_defoutgv)) |
859 | s = IoFMT_NAME(GvIOp(PL_defoutgv)); | |
79072805 | 860 | if (!s) |
3280af22 | 861 | s = GvENAME(PL_defoutgv); |
79072805 LW |
862 | sv_setpv(sv,s); |
863 | break; | |
864 | #ifndef lint | |
865 | case '=': | |
0daa599b RGS |
866 | if (GvIOp(PL_defoutgv)) |
867 | sv_setiv(sv, (IV)IoPAGE_LEN(GvIOp(PL_defoutgv))); | |
79072805 LW |
868 | break; |
869 | case '-': | |
0daa599b RGS |
870 | if (GvIOp(PL_defoutgv)) |
871 | sv_setiv(sv, (IV)IoLINES_LEFT(GvIOp(PL_defoutgv))); | |
79072805 LW |
872 | break; |
873 | case '%': | |
0daa599b RGS |
874 | if (GvIOp(PL_defoutgv)) |
875 | sv_setiv(sv, (IV)IoPAGE(GvIOp(PL_defoutgv))); | |
79072805 LW |
876 | break; |
877 | #endif | |
878 | case ':': | |
879 | break; | |
880 | case '/': | |
881 | break; | |
882 | case '[': | |
3280af22 | 883 | WITH_THR(sv_setiv(sv, (IV)PL_curcop->cop_arybase)); |
79072805 LW |
884 | break; |
885 | case '|': | |
0daa599b RGS |
886 | if (GvIOp(PL_defoutgv)) |
887 | sv_setiv(sv, (IV)(IoFLAGS(GvIOp(PL_defoutgv)) & IOf_FLUSH) != 0 ); | |
79072805 LW |
888 | break; |
889 | case ',': | |
79072805 LW |
890 | break; |
891 | case '\\': | |
b2ce0fda | 892 | if (PL_ors_sv) |
f28098ff | 893 | sv_copypv(sv, PL_ors_sv); |
79072805 LW |
894 | break; |
895 | case '#': | |
3280af22 | 896 | sv_setpv(sv,PL_ofmt); |
79072805 LW |
897 | break; |
898 | case '!': | |
a5f75d66 | 899 | #ifdef VMS |
65202027 | 900 | sv_setnv(sv, (NV)((errno == EVMSERR) ? vaxc$errno : errno)); |
88e89b8a | 901 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
a5f75d66 | 902 | #else |
88e89b8a | 903 | { |
904 | int saveerrno = errno; | |
65202027 | 905 | sv_setnv(sv, (NV)errno); |
88e89b8a | 906 | #ifdef OS2 |
ed344e4f IZ |
907 | if (errno == errno_isOS2 || errno == errno_isOS2_set) |
908 | sv_setpv(sv, os2error(Perl_rc)); | |
88e89b8a | 909 | else |
a5f75d66 | 910 | #endif |
2304df62 | 911 | sv_setpv(sv, errno ? Strerror(errno) : ""); |
88e89b8a | 912 | errno = saveerrno; |
913 | } | |
914 | #endif | |
946ec16e | 915 | SvNOK_on(sv); /* what a wonderful hack! */ |
79072805 LW |
916 | break; |
917 | case '<': | |
3280af22 | 918 | sv_setiv(sv, (IV)PL_uid); |
79072805 LW |
919 | break; |
920 | case '>': | |
3280af22 | 921 | sv_setiv(sv, (IV)PL_euid); |
79072805 LW |
922 | break; |
923 | case '(': | |
3280af22 | 924 | sv_setiv(sv, (IV)PL_gid); |
a52cb5f7 | 925 | #ifdef HAS_GETGROUPS |
785fb66b | 926 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_gid); |
a52cb5f7 | 927 | #endif |
79072805 LW |
928 | goto add_groups; |
929 | case ')': | |
3280af22 | 930 | sv_setiv(sv, (IV)PL_egid); |
a52cb5f7 | 931 | #ifdef HAS_GETGROUPS |
785fb66b | 932 | Perl_sv_setpvf(aTHX_ sv, "%"Gid_t_f, PL_egid); |
a52cb5f7 | 933 | #endif |
79072805 | 934 | add_groups: |
79072805 | 935 | #ifdef HAS_GETGROUPS |
79072805 | 936 | { |
a0d0e21e | 937 | Groups_t gary[NGROUPS]; |
79072805 | 938 | i = getgroups(NGROUPS,gary); |
46fc3d4c | 939 | while (--i >= 0) |
785fb66b | 940 | Perl_sv_catpvf(aTHX_ sv, " %"Gid_t_f, gary[i]); |
79072805 LW |
941 | } |
942 | #endif | |
155aba94 | 943 | (void)SvIOK_on(sv); /* what a wonderful hack! */ |
79072805 | 944 | break; |
cd39f2b6 | 945 | #ifndef MACOS_TRADITIONAL |
79072805 LW |
946 | case '0': |
947 | break; | |
cd39f2b6 | 948 | #endif |
79072805 | 949 | } |
a0d0e21e | 950 | return 0; |
79072805 LW |
951 | } |
952 | ||
953 | int | |
864dbfa3 | 954 | Perl_magic_getuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
955 | { |
956 | struct ufuncs *uf = (struct ufuncs *)mg->mg_ptr; | |
957 | ||
958 | if (uf && uf->uf_val) | |
24f81a43 | 959 | (*uf->uf_val)(aTHX_ uf->uf_index, sv); |
79072805 LW |
960 | return 0; |
961 | } | |
962 | ||
963 | int | |
864dbfa3 | 964 | Perl_magic_setenv(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 965 | { |
27da23d5 | 966 | dVAR; |
79072805 | 967 | register char *s; |
88e89b8a | 968 | char *ptr; |
5aabfad6 | 969 | STRLEN len, klen; |
1e422769 | 970 | |
a0d0e21e | 971 | s = SvPV(sv,len); |
5aabfad6 | 972 | ptr = MgPV(mg,klen); |
88e89b8a | 973 | my_setenv(ptr, s); |
1e422769 | 974 | |
a0d0e21e LW |
975 | #ifdef DYNAMIC_ENV_FETCH |
976 | /* We just undefd an environment var. Is a replacement */ | |
977 | /* waiting in the wings? */ | |
978 | if (!len) { | |
5aabfad6 | 979 | SV **valp; |
6b88bc9c | 980 | if ((valp = hv_fetch(GvHVn(PL_envgv), ptr, klen, FALSE))) |
5aabfad6 | 981 | s = SvPV(*valp, len); |
a0d0e21e LW |
982 | } |
983 | #endif | |
1e422769 | 984 | |
39e571d4 | 985 | #if !defined(OS2) && !defined(AMIGAOS) && !defined(WIN32) && !defined(MSDOS) |
79072805 LW |
986 | /* And you'll never guess what the dog had */ |
987 | /* in its mouth... */ | |
3280af22 | 988 | if (PL_tainting) { |
1e422769 | 989 | MgTAINTEDDIR_off(mg); |
990 | #ifdef VMS | |
5aabfad6 | 991 | if (s && klen == 8 && strEQ(ptr, "DCL$PATH")) { |
1e422769 | 992 | char pathbuf[256], eltbuf[256], *cp, *elt = s; |
c623ac67 | 993 | Stat_t sbuf; |
1e422769 | 994 | int i = 0, j = 0; |
995 | ||
996 | do { /* DCL$PATH may be a search list */ | |
997 | while (1) { /* as may dev portion of any element */ | |
998 | if ( ((cp = strchr(elt,'[')) || (cp = strchr(elt,'<'))) ) { | |
999 | if ( *(cp+1) == '.' || *(cp+1) == '-' || | |
1000 | cando_by_name(S_IWUSR,0,elt) ) { | |
1001 | MgTAINTEDDIR_on(mg); | |
1002 | return 0; | |
1003 | } | |
1004 | } | |
1005 | if ((cp = strchr(elt, ':')) != Nullch) | |
1006 | *cp = '\0'; | |
1007 | if (my_trnlnm(elt, eltbuf, j++)) | |
1008 | elt = eltbuf; | |
1009 | else | |
1010 | break; | |
1011 | } | |
1012 | j = 0; | |
1013 | } while (my_trnlnm(s, pathbuf, i++) && (elt = pathbuf)); | |
1014 | } | |
1015 | #endif /* VMS */ | |
5aabfad6 | 1016 | if (s && klen == 4 && strEQ(ptr,"PATH")) { |
a0d0e21e | 1017 | char *strend = s + len; |
463ee0b2 LW |
1018 | |
1019 | while (s < strend) { | |
96827780 | 1020 | char tmpbuf[256]; |
c623ac67 | 1021 | Stat_t st; |
5f74f29c | 1022 | I32 i; |
96827780 | 1023 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, |
fc36a67e | 1024 | s, strend, ':', &i); |
463ee0b2 | 1025 | s++; |
96827780 MB |
1026 | if (i >= sizeof tmpbuf /* too long -- assume the worst */ |
1027 | || *tmpbuf != '/' | |
c6ed36e1 | 1028 | || (PerlLIO_stat(tmpbuf, &st) == 0 && (st.st_mode & 2)) ) { |
8990e307 | 1029 | MgTAINTEDDIR_on(mg); |
1e422769 | 1030 | return 0; |
1031 | } | |
463ee0b2 | 1032 | } |
79072805 LW |
1033 | } |
1034 | } | |
39e571d4 | 1035 | #endif /* neither OS2 nor AMIGAOS nor WIN32 nor MSDOS */ |
1e422769 | 1036 | |
79072805 LW |
1037 | return 0; |
1038 | } | |
1039 | ||
1040 | int | |
864dbfa3 | 1041 | Perl_magic_clearenv(pTHX_ SV *sv, MAGIC *mg) |
85e6fe83 | 1042 | { |
2d8e6c8d | 1043 | STRLEN n_a; |
dd374669 | 1044 | (void)sv; |
2d8e6c8d | 1045 | my_setenv(MgPV(mg,n_a),Nullch); |
85e6fe83 LW |
1046 | return 0; |
1047 | } | |
1048 | ||
88e89b8a | 1049 | int |
864dbfa3 | 1050 | Perl_magic_set_all_env(pTHX_ SV *sv, MAGIC *mg) |
fb73857a | 1051 | { |
27da23d5 | 1052 | #if defined(VMS) || defined(EPOC) || defined(SYMBIAN) |
cea2e8a9 | 1053 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
fb73857a | 1054 | #else |
3280af22 | 1055 | if (PL_localizing) { |
fb73857a | 1056 | HE* entry; |
2d8e6c8d | 1057 | STRLEN n_a; |
fb73857a | 1058 | magic_clear_all_env(sv,mg); |
1059 | hv_iterinit((HV*)sv); | |
155aba94 | 1060 | while ((entry = hv_iternext((HV*)sv))) { |
fb73857a | 1061 | I32 keylen; |
1062 | my_setenv(hv_iterkey(entry, &keylen), | |
2d8e6c8d | 1063 | SvPV(hv_iterval((HV*)sv, entry), n_a)); |
fb73857a | 1064 | } |
1065 | } | |
1066 | #endif | |
1067 | return 0; | |
1068 | } | |
1069 | ||
1070 | int | |
864dbfa3 | 1071 | Perl_magic_clear_all_env(pTHX_ SV *sv, MAGIC *mg) |
66b1d557 | 1072 | { |
27da23d5 | 1073 | dVAR; |
2f42fcb0 | 1074 | #ifndef PERL_MICRO |
27da23d5 | 1075 | #if defined(VMS) || defined(EPOC) || defined(SYMBIAN) |
cea2e8a9 | 1076 | Perl_die(aTHX_ "Can't make list assignment to %%ENV on this system"); |
3e3baf6d | 1077 | #else |
4efc5df6 | 1078 | # if defined(PERL_IMPLICIT_SYS) || defined(WIN32) |
7766f137 | 1079 | PerlEnv_clearenv(); |
4efc5df6 GS |
1080 | # else |
1081 | # ifdef USE_ENVIRON_ARRAY | |
1082 | # if defined(USE_ITHREADS) | |
1083 | /* only the parent thread can clobber the process environment */ | |
1084 | if (PL_curinterp == aTHX) | |
1085 | # endif | |
1086 | { | |
1087 | # ifndef PERL_USE_SAFE_PUTENV | |
50acdf95 | 1088 | if (!PL_use_safe_putenv) { |
66b1d557 HM |
1089 | I32 i; |
1090 | ||
3280af22 | 1091 | if (environ == PL_origenviron) |
f2517201 | 1092 | environ = (char**)safesysmalloc(sizeof(char*)); |
66b1d557 HM |
1093 | else |
1094 | for (i = 0; environ[i]; i++) | |
f2517201 | 1095 | safesysfree(environ[i]); |
50acdf95 | 1096 | } |
4efc5df6 | 1097 | # endif /* PERL_USE_SAFE_PUTENV */ |
f2517201 | 1098 | |
66b1d557 | 1099 | environ[0] = Nullch; |
4efc5df6 GS |
1100 | } |
1101 | # endif /* USE_ENVIRON_ARRAY */ | |
052c2dc6 | 1102 | # endif /* PERL_IMPLICIT_SYS || WIN32 */ |
2f42fcb0 JH |
1103 | #endif /* VMS || EPOC */ |
1104 | #endif /* !PERL_MICRO */ | |
dd374669 AL |
1105 | (void)sv; |
1106 | (void)mg; | |
3e3baf6d | 1107 | return 0; |
66b1d557 HM |
1108 | } |
1109 | ||
64ca3a65 | 1110 | #ifndef PERL_MICRO |
2d4fcd5e AJ |
1111 | #ifdef HAS_SIGPROCMASK |
1112 | static void | |
1113 | restore_sigmask(pTHX_ SV *save_sv) | |
1114 | { | |
1115 | sigset_t *ossetp = (sigset_t *) SvPV_nolen( save_sv ); | |
1116 | (void)sigprocmask(SIG_SETMASK, ossetp, (sigset_t *)0); | |
1117 | } | |
1118 | #endif | |
66b1d557 | 1119 | int |
864dbfa3 | 1120 | Perl_magic_getsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1121 | { |
1122 | I32 i; | |
2d8e6c8d | 1123 | STRLEN n_a; |
88e89b8a | 1124 | /* Are we fetching a signal entry? */ |
2d8e6c8d | 1125 | i = whichsig(MgPV(mg,n_a)); |
e02bfb16 | 1126 | if (i > 0) { |
22c35a8c GS |
1127 | if(PL_psig_ptr[i]) |
1128 | sv_setsv(sv,PL_psig_ptr[i]); | |
88e89b8a | 1129 | else { |
85b332e2 | 1130 | Sighandler_t sigstate; |
2e34cc90 | 1131 | sigstate = rsignal_state(i); |
23ada85b | 1132 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1133 | if (PL_sig_handlers_initted && PL_sig_ignoring[i]) sigstate = SIG_IGN; |
2e34cc90 CL |
1134 | #endif |
1135 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1136 | if (PL_sig_handlers_initted && PL_sig_defaulting[i]) sigstate = SIG_DFL; |
85b332e2 | 1137 | #endif |
88e89b8a | 1138 | /* cache state so we don't fetch it again */ |
ff68c719 | 1139 | if(sigstate == SIG_IGN) |
88e89b8a | 1140 | sv_setpv(sv,"IGNORE"); |
1141 | else | |
3280af22 | 1142 | sv_setsv(sv,&PL_sv_undef); |
22c35a8c | 1143 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1144 | SvTEMP_off(sv); |
1145 | } | |
1146 | } | |
1147 | return 0; | |
1148 | } | |
1149 | int | |
864dbfa3 | 1150 | Perl_magic_clearsig(pTHX_ SV *sv, MAGIC *mg) |
88e89b8a | 1151 | { |
2d4fcd5e AJ |
1152 | /* XXX Some of this code was copied from Perl_magic_setsig. A little |
1153 | * refactoring might be in order. | |
1154 | */ | |
27da23d5 | 1155 | dVAR; |
2d8e6c8d | 1156 | STRLEN n_a; |
35a4481c | 1157 | register const char *s = MgPV(mg,n_a); |
dd374669 | 1158 | (void)sv; |
2d4fcd5e | 1159 | if (*s == '_') { |
27da23d5 | 1160 | SV** svp = 0; |
2d4fcd5e AJ |
1161 | if (strEQ(s,"__DIE__")) |
1162 | svp = &PL_diehook; | |
1163 | else if (strEQ(s,"__WARN__")) | |
1164 | svp = &PL_warnhook; | |
1165 | else | |
1166 | Perl_croak(aTHX_ "No such hook: %s", s); | |
27da23d5 | 1167 | if (svp && *svp) { |
dd374669 | 1168 | SV *to_dec = *svp; |
2d4fcd5e AJ |
1169 | *svp = 0; |
1170 | SvREFCNT_dec(to_dec); | |
1171 | } | |
1172 | } | |
1173 | else { | |
1174 | I32 i; | |
1175 | /* Are we clearing a signal entry? */ | |
1176 | i = whichsig(s); | |
e02bfb16 | 1177 | if (i > 0) { |
2d4fcd5e AJ |
1178 | #ifdef HAS_SIGPROCMASK |
1179 | sigset_t set, save; | |
1180 | SV* save_sv; | |
1181 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1182 | sigemptyset(&set); | |
1183 | sigaddset(&set,i); | |
1184 | sigprocmask(SIG_BLOCK, &set, &save); | |
1185 | ENTER; | |
1186 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1187 | SAVEFREESV(save_sv); | |
1188 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1189 | #endif | |
1190 | PERL_ASYNC_CHECK(); | |
1191 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) | |
27da23d5 | 1192 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2d4fcd5e AJ |
1193 | #endif |
1194 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
27da23d5 | 1195 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1196 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1197 | #else |
1198 | (void)rsignal(i, SIG_DFL); | |
1199 | #endif | |
1200 | if(PL_psig_name[i]) { | |
1201 | SvREFCNT_dec(PL_psig_name[i]); | |
1202 | PL_psig_name[i]=0; | |
1203 | } | |
1204 | if(PL_psig_ptr[i]) { | |
dd374669 | 1205 | SV *to_dec=PL_psig_ptr[i]; |
2d4fcd5e AJ |
1206 | PL_psig_ptr[i]=0; |
1207 | LEAVE; | |
1208 | SvREFCNT_dec(to_dec); | |
1209 | } | |
1210 | else | |
1211 | LEAVE; | |
1212 | } | |
88e89b8a | 1213 | } |
1214 | return 0; | |
1215 | } | |
3d37d572 | 1216 | |
dd374669 AL |
1217 | static void |
1218 | S_raise_signal(pTHX_ int sig) | |
0a8e0eff NIS |
1219 | { |
1220 | /* Set a flag to say this signal is pending */ | |
1221 | PL_psig_pend[sig]++; | |
1222 | /* And one to say _a_ signal is pending */ | |
1223 | PL_sig_pending = 1; | |
1224 | } | |
1225 | ||
1226 | Signal_t | |
1227 | Perl_csighandler(int sig) | |
1228 | { | |
1018e26f NIS |
1229 | #ifdef PERL_GET_SIG_CONTEXT |
1230 | dTHXa(PERL_GET_SIG_CONTEXT); | |
1231 | #else | |
85b332e2 CL |
1232 | dTHX; |
1233 | #endif | |
23ada85b | 1234 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
5c1546dc | 1235 | (void) rsignal(sig, PL_csighandlerp); |
27da23d5 | 1236 | if (PL_sig_ignoring[sig]) return; |
85b332e2 | 1237 | #endif |
2e34cc90 | 1238 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1239 | if (PL_sig_defaulting[sig]) |
2e34cc90 CL |
1240 | #ifdef KILL_BY_SIGPRC |
1241 | exit((Perl_sig_to_vmscondition(sig)&STS$M_COND_ID)|STS$K_SEVERE|STS$M_INHIB_MSG); | |
1242 | #else | |
1243 | exit(1); | |
1244 | #endif | |
1245 | #endif | |
4ffa73a3 JH |
1246 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
1247 | /* Call the perl level handler now-- | |
1248 | * with risk we may be in malloc() etc. */ | |
1249 | (*PL_sighandlerp)(sig); | |
1250 | else | |
dd374669 | 1251 | S_raise_signal(aTHX_ sig); |
0a8e0eff NIS |
1252 | } |
1253 | ||
2e34cc90 CL |
1254 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
1255 | void | |
1256 | Perl_csighandler_init(void) | |
1257 | { | |
1258 | int sig; | |
27da23d5 | 1259 | if (PL_sig_handlers_initted) return; |
2e34cc90 CL |
1260 | |
1261 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1262 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS | |
218fdd94 | 1263 | dTHX; |
27da23d5 | 1264 | PL_sig_defaulting[sig] = 1; |
5c1546dc | 1265 | (void) rsignal(sig, PL_csighandlerp); |
2e34cc90 CL |
1266 | #endif |
1267 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS | |
27da23d5 | 1268 | PL_sig_ignoring[sig] = 0; |
2e34cc90 CL |
1269 | #endif |
1270 | } | |
27da23d5 | 1271 | PL_sig_handlers_initted = 1; |
2e34cc90 CL |
1272 | } |
1273 | #endif | |
1274 | ||
0a8e0eff NIS |
1275 | void |
1276 | Perl_despatch_signals(pTHX) | |
1277 | { | |
1278 | int sig; | |
1279 | PL_sig_pending = 0; | |
1280 | for (sig = 1; sig < SIG_SIZE; sig++) { | |
1281 | if (PL_psig_pend[sig]) { | |
25da4428 JH |
1282 | PERL_BLOCKSIG_ADD(set, sig); |
1283 | PL_psig_pend[sig] = 0; | |
1284 | PERL_BLOCKSIG_BLOCK(set); | |
f5203343 | 1285 | (*PL_sighandlerp)(sig); |
25da4428 | 1286 | PERL_BLOCKSIG_UNBLOCK(set); |
0a8e0eff NIS |
1287 | } |
1288 | } | |
1289 | } | |
1290 | ||
85e6fe83 | 1291 | int |
864dbfa3 | 1292 | Perl_magic_setsig(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1293 | { |
27da23d5 | 1294 | dVAR; |
79072805 | 1295 | I32 i; |
b7953727 | 1296 | SV** svp = 0; |
2d4fcd5e AJ |
1297 | /* Need to be careful with SvREFCNT_dec(), because that can have side |
1298 | * effects (due to closures). We must make sure that the new disposition | |
1299 | * is in place before it is called. | |
1300 | */ | |
1301 | SV* to_dec = 0; | |
e72dc28c | 1302 | STRLEN len; |
2d4fcd5e AJ |
1303 | #ifdef HAS_SIGPROCMASK |
1304 | sigset_t set, save; | |
1305 | SV* save_sv; | |
1306 | #endif | |
a0d0e21e | 1307 | |
35a4481c | 1308 | register const char *s = MgPV(mg,len); |
748a9306 LW |
1309 | if (*s == '_') { |
1310 | if (strEQ(s,"__DIE__")) | |
3280af22 | 1311 | svp = &PL_diehook; |
748a9306 | 1312 | else if (strEQ(s,"__WARN__")) |
3280af22 | 1313 | svp = &PL_warnhook; |
748a9306 | 1314 | else |
cea2e8a9 | 1315 | Perl_croak(aTHX_ "No such hook: %s", s); |
748a9306 | 1316 | i = 0; |
4633a7c4 | 1317 | if (*svp) { |
2d4fcd5e | 1318 | to_dec = *svp; |
4633a7c4 LW |
1319 | *svp = 0; |
1320 | } | |
748a9306 LW |
1321 | } |
1322 | else { | |
1323 | i = whichsig(s); /* ...no, a brick */ | |
e02bfb16 | 1324 | if (i < 0) { |
e476b1b5 | 1325 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 1326 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "No such signal: SIG%s", s); |
748a9306 LW |
1327 | return 0; |
1328 | } | |
2d4fcd5e AJ |
1329 | #ifdef HAS_SIGPROCMASK |
1330 | /* Avoid having the signal arrive at a bad time, if possible. */ | |
1331 | sigemptyset(&set); | |
1332 | sigaddset(&set,i); | |
1333 | sigprocmask(SIG_BLOCK, &set, &save); | |
1334 | ENTER; | |
1335 | save_sv = newSVpv((char *)(&save), sizeof(sigset_t)); | |
1336 | SAVEFREESV(save_sv); | |
1337 | SAVEDESTRUCTOR_X(restore_sigmask, save_sv); | |
1338 | #endif | |
1339 | PERL_ASYNC_CHECK(); | |
2e34cc90 | 1340 | #if defined(FAKE_PERSISTENT_SIGNAL_HANDLERS) || defined(FAKE_DEFAULT_SIGNAL_HANDLERS) |
27da23d5 | 1341 | if (!PL_sig_handlers_initted) Perl_csighandler_init(); |
2e34cc90 | 1342 | #endif |
23ada85b | 1343 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1344 | PL_sig_ignoring[i] = 0; |
85b332e2 | 1345 | #endif |
2e34cc90 | 1346 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
27da23d5 | 1347 | PL_sig_defaulting[i] = 0; |
2e34cc90 | 1348 | #endif |
22c35a8c | 1349 | SvREFCNT_dec(PL_psig_name[i]); |
2d4fcd5e | 1350 | to_dec = PL_psig_ptr[i]; |
22c35a8c | 1351 | PL_psig_ptr[i] = SvREFCNT_inc(sv); |
88e89b8a | 1352 | SvTEMP_off(sv); /* Make sure it doesn't go away on us */ |
e72dc28c | 1353 | PL_psig_name[i] = newSVpvn(s, len); |
22c35a8c | 1354 | SvREADONLY_on(PL_psig_name[i]); |
748a9306 | 1355 | } |
a0d0e21e | 1356 | if (SvTYPE(sv) == SVt_PVGV || SvROK(sv)) { |
2d4fcd5e | 1357 | if (i) { |
5c1546dc | 1358 | (void)rsignal(i, PL_csighandlerp); |
2d4fcd5e AJ |
1359 | #ifdef HAS_SIGPROCMASK |
1360 | LEAVE; | |
1361 | #endif | |
1362 | } | |
748a9306 LW |
1363 | else |
1364 | *svp = SvREFCNT_inc(sv); | |
2d4fcd5e AJ |
1365 | if(to_dec) |
1366 | SvREFCNT_dec(to_dec); | |
a0d0e21e LW |
1367 | return 0; |
1368 | } | |
e72dc28c | 1369 | s = SvPV_force(sv,len); |
748a9306 | 1370 | if (strEQ(s,"IGNORE")) { |
85b332e2 | 1371 | if (i) { |
23ada85b | 1372 | #ifdef FAKE_PERSISTENT_SIGNAL_HANDLERS |
27da23d5 | 1373 | PL_sig_ignoring[i] = 1; |
5c1546dc | 1374 | (void)rsignal(i, PL_csighandlerp); |
85b332e2 | 1375 | #else |
ff68c719 | 1376 | (void)rsignal(i, SIG_IGN); |
85b332e2 | 1377 | #endif |
2d4fcd5e | 1378 | } |
748a9306 LW |
1379 | } |
1380 | else if (strEQ(s,"DEFAULT") || !*s) { | |
1381 | if (i) | |
2e34cc90 CL |
1382 | #ifdef FAKE_DEFAULT_SIGNAL_HANDLERS |
1383 | { | |
27da23d5 | 1384 | PL_sig_defaulting[i] = 1; |
5c1546dc | 1385 | (void)rsignal(i, PL_csighandlerp); |
2e34cc90 CL |
1386 | } |
1387 | #else | |
ff68c719 | 1388 | (void)rsignal(i, SIG_DFL); |
2e34cc90 | 1389 | #endif |
748a9306 | 1390 | } |
79072805 | 1391 | else { |
5aabfad6 | 1392 | /* |
1393 | * We should warn if HINT_STRICT_REFS, but without | |
1394 | * access to a known hint bit in a known OP, we can't | |
1395 | * tell whether HINT_STRICT_REFS is in force or not. | |
1396 | */ | |
46fc3d4c | 1397 | if (!strchr(s,':') && !strchr(s,'\'')) |
e72dc28c | 1398 | sv_insert(sv, 0, 0, "main::", 6); |
748a9306 | 1399 | if (i) |
5c1546dc | 1400 | (void)rsignal(i, PL_csighandlerp); |
748a9306 LW |
1401 | else |
1402 | *svp = SvREFCNT_inc(sv); | |
79072805 | 1403 | } |
2d4fcd5e AJ |
1404 | #ifdef HAS_SIGPROCMASK |
1405 | if(i) | |
1406 | LEAVE; | |
1407 | #endif | |
1408 | if(to_dec) | |
1409 | SvREFCNT_dec(to_dec); | |
79072805 LW |
1410 | return 0; |
1411 | } | |
64ca3a65 | 1412 | #endif /* !PERL_MICRO */ |
79072805 LW |
1413 | |
1414 | int | |
864dbfa3 | 1415 | Perl_magic_setisa(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1416 | { |
dd374669 AL |
1417 | (void)sv; |
1418 | (void)mg; | |
3280af22 | 1419 | PL_sub_generation++; |
463ee0b2 LW |
1420 | return 0; |
1421 | } | |
1422 | ||
1423 | int | |
864dbfa3 | 1424 | Perl_magic_setamagic(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1425 | { |
dd374669 AL |
1426 | (void)sv; |
1427 | (void)mg; | |
a0d0e21e | 1428 | /* HV_badAMAGIC_on(Sv_STASH(sv)); */ |
3280af22 | 1429 | PL_amagic_generation++; |
463ee0b2 | 1430 | |
a0d0e21e LW |
1431 | return 0; |
1432 | } | |
463ee0b2 | 1433 | |
946ec16e | 1434 | int |
864dbfa3 | 1435 | Perl_magic_getnkeys(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1436 | { |
dd374669 | 1437 | HV * const hv = (HV*)LvTARG(sv); |
6ff81951 | 1438 | I32 i = 0; |
dd374669 | 1439 | (void)mg; |
7719e241 | 1440 | |
6ff81951 | 1441 | if (hv) { |
497b47a8 JH |
1442 | (void) hv_iterinit(hv); |
1443 | if (! SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) | |
1444 | i = HvKEYS(hv); | |
1445 | else { | |
1446 | while (hv_iternext(hv)) | |
1447 | i++; | |
1448 | } | |
6ff81951 GS |
1449 | } |
1450 | ||
1451 | sv_setiv(sv, (IV)i); | |
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | int | |
864dbfa3 | 1456 | Perl_magic_setnkeys(pTHX_ SV *sv, MAGIC *mg) |
946ec16e | 1457 | { |
dd374669 | 1458 | (void)mg; |
946ec16e | 1459 | if (LvTARG(sv)) { |
1460 | hv_ksplit((HV*)LvTARG(sv), SvIV(sv)); | |
946ec16e | 1461 | } |
1462 | return 0; | |
ac27b0f5 | 1463 | } |
946ec16e | 1464 | |
e336de0d | 1465 | /* caller is responsible for stack switching/cleanup */ |
565764a8 | 1466 | STATIC int |
e1ec3a88 | 1467 | S_magic_methcall(pTHX_ SV *sv, const MAGIC *mg, const char *meth, I32 flags, int n, SV *val) |
a0d0e21e LW |
1468 | { |
1469 | dSP; | |
463ee0b2 | 1470 | |
924508f0 GS |
1471 | PUSHMARK(SP); |
1472 | EXTEND(SP, n); | |
33c27489 | 1473 | PUSHs(SvTIED_obj(sv, mg)); |
ac27b0f5 | 1474 | if (n > 1) { |
93965878 | 1475 | if (mg->mg_ptr) { |
565764a8 | 1476 | if (mg->mg_len >= 0) |
79cb57f6 | 1477 | PUSHs(sv_2mortal(newSVpvn(mg->mg_ptr, mg->mg_len))); |
565764a8 | 1478 | else if (mg->mg_len == HEf_SVKEY) |
93965878 NIS |
1479 | PUSHs((SV*)mg->mg_ptr); |
1480 | } | |
14befaf4 | 1481 | else if (mg->mg_type == PERL_MAGIC_tiedelem) { |
565764a8 | 1482 | PUSHs(sv_2mortal(newSViv(mg->mg_len))); |
93965878 NIS |
1483 | } |
1484 | } | |
1485 | if (n > 2) { | |
1486 | PUSHs(val); | |
88e89b8a | 1487 | } |
463ee0b2 LW |
1488 | PUTBACK; |
1489 | ||
864dbfa3 | 1490 | return call_method(meth, flags); |
946ec16e | 1491 | } |
1492 | ||
76e3520e | 1493 | STATIC int |
e1ec3a88 | 1494 | S_magic_methpack(pTHX_ SV *sv, const MAGIC *mg, const char *meth) |
a0d0e21e | 1495 | { |
27da23d5 | 1496 | dVAR; dSP; |
463ee0b2 | 1497 | |
a0d0e21e LW |
1498 | ENTER; |
1499 | SAVETMPS; | |
e788e7d3 | 1500 | PUSHSTACKi(PERLSI_MAGIC); |
463ee0b2 | 1501 | |
33c27489 | 1502 | if (magic_methcall(sv, mg, meth, G_SCALAR, 2, NULL)) { |
3280af22 | 1503 | sv_setsv(sv, *PL_stack_sp--); |
93965878 | 1504 | } |
463ee0b2 | 1505 | |
d3acc0f7 | 1506 | POPSTACK; |
a0d0e21e LW |
1507 | FREETMPS; |
1508 | LEAVE; | |
1509 | return 0; | |
1510 | } | |
463ee0b2 | 1511 | |
a0d0e21e | 1512 | int |
864dbfa3 | 1513 | Perl_magic_getpack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e | 1514 | { |
a0d0e21e LW |
1515 | if (mg->mg_ptr) |
1516 | mg->mg_flags |= MGf_GSKIP; | |
58f82c5c | 1517 | magic_methpack(sv,mg,"FETCH"); |
463ee0b2 LW |
1518 | return 0; |
1519 | } | |
1520 | ||
1521 | int | |
864dbfa3 | 1522 | Perl_magic_setpack(pTHX_ SV *sv, MAGIC *mg) |
e336de0d | 1523 | { |
27da23d5 | 1524 | dVAR; dSP; |
a60c0954 | 1525 | ENTER; |
e788e7d3 | 1526 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1527 | magic_methcall(sv, mg, "STORE", G_SCALAR|G_DISCARD, 3, sv); |
d3acc0f7 | 1528 | POPSTACK; |
a60c0954 | 1529 | LEAVE; |
463ee0b2 LW |
1530 | return 0; |
1531 | } | |
1532 | ||
1533 | int | |
864dbfa3 | 1534 | Perl_magic_clearpack(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1535 | { |
a0d0e21e LW |
1536 | return magic_methpack(sv,mg,"DELETE"); |
1537 | } | |
463ee0b2 | 1538 | |
93965878 NIS |
1539 | |
1540 | U32 | |
864dbfa3 | 1541 | Perl_magic_sizepack(pTHX_ SV *sv, MAGIC *mg) |
ac27b0f5 | 1542 | { |
27da23d5 | 1543 | dVAR; dSP; |
93965878 NIS |
1544 | U32 retval = 0; |
1545 | ||
1546 | ENTER; | |
1547 | SAVETMPS; | |
e788e7d3 | 1548 | PUSHSTACKi(PERLSI_MAGIC); |
33c27489 | 1549 | if (magic_methcall(sv, mg, "FETCHSIZE", G_SCALAR, 2, NULL)) { |
3280af22 | 1550 | sv = *PL_stack_sp--; |
a60c0954 | 1551 | retval = (U32) SvIV(sv)-1; |
93965878 | 1552 | } |
d3acc0f7 | 1553 | POPSTACK; |
93965878 NIS |
1554 | FREETMPS; |
1555 | LEAVE; | |
1556 | return retval; | |
1557 | } | |
1558 | ||
cea2e8a9 GS |
1559 | int |
1560 | Perl_magic_wipepack(pTHX_ SV *sv, MAGIC *mg) | |
a0d0e21e | 1561 | { |
27da23d5 | 1562 | dVAR; dSP; |
463ee0b2 | 1563 | |
e336de0d | 1564 | ENTER; |
e788e7d3 | 1565 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 | 1566 | PUSHMARK(SP); |
33c27489 | 1567 | XPUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 | 1568 | PUTBACK; |
864dbfa3 | 1569 | call_method("CLEAR", G_SCALAR|G_DISCARD); |
d3acc0f7 | 1570 | POPSTACK; |
a60c0954 | 1571 | LEAVE; |
a3bcc51e | 1572 | |
463ee0b2 LW |
1573 | return 0; |
1574 | } | |
1575 | ||
1576 | int | |
864dbfa3 | 1577 | Perl_magic_nextpack(pTHX_ SV *sv, MAGIC *mg, SV *key) |
463ee0b2 | 1578 | { |
27da23d5 | 1579 | dVAR; dSP; |
35a4481c | 1580 | const char * const meth = SvOK(key) ? "NEXTKEY" : "FIRSTKEY"; |
463ee0b2 LW |
1581 | |
1582 | ENTER; | |
a0d0e21e | 1583 | SAVETMPS; |
e788e7d3 | 1584 | PUSHSTACKi(PERLSI_MAGIC); |
924508f0 GS |
1585 | PUSHMARK(SP); |
1586 | EXTEND(SP, 2); | |
33c27489 | 1587 | PUSHs(SvTIED_obj(sv, mg)); |
463ee0b2 LW |
1588 | if (SvOK(key)) |
1589 | PUSHs(key); | |
1590 | PUTBACK; | |
1591 | ||
864dbfa3 | 1592 | if (call_method(meth, G_SCALAR)) |
3280af22 | 1593 | sv_setsv(key, *PL_stack_sp--); |
463ee0b2 | 1594 | |
d3acc0f7 | 1595 | POPSTACK; |
a0d0e21e LW |
1596 | FREETMPS; |
1597 | LEAVE; | |
79072805 LW |
1598 | return 0; |
1599 | } | |
1600 | ||
1601 | int | |
864dbfa3 | 1602 | Perl_magic_existspack(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1603 | { |
1604 | return magic_methpack(sv,mg,"EXISTS"); | |
ac27b0f5 | 1605 | } |
a0d0e21e | 1606 | |
a3bcc51e TP |
1607 | SV * |
1608 | Perl_magic_scalarpack(pTHX_ HV *hv, MAGIC *mg) | |
1609 | { | |
27da23d5 | 1610 | dVAR; dSP; |
a3bcc51e TP |
1611 | SV *retval = &PL_sv_undef; |
1612 | SV *tied = SvTIED_obj((SV*)hv, mg); | |
1613 | HV *pkg = SvSTASH((SV*)SvRV(tied)); | |
1614 | ||
1615 | if (!gv_fetchmethod_autoload(pkg, "SCALAR", FALSE)) { | |
1616 | SV *key; | |
1617 | if (HvEITER(hv)) | |
1618 | /* we are in an iteration so the hash cannot be empty */ | |
1619 | return &PL_sv_yes; | |
1620 | /* no xhv_eiter so now use FIRSTKEY */ | |
1621 | key = sv_newmortal(); | |
1622 | magic_nextpack((SV*)hv, mg, key); | |
1623 | HvEITER(hv) = NULL; /* need to reset iterator */ | |
1624 | return SvOK(key) ? &PL_sv_yes : &PL_sv_no; | |
1625 | } | |
1626 | ||
1627 | /* there is a SCALAR method that we can call */ | |
1628 | ENTER; | |
1629 | PUSHSTACKi(PERLSI_MAGIC); | |
1630 | PUSHMARK(SP); | |
1631 | EXTEND(SP, 1); | |
1632 | PUSHs(tied); | |
1633 | PUTBACK; | |
1634 | ||
1635 | if (call_method("SCALAR", G_SCALAR)) | |
1636 | retval = *PL_stack_sp--; | |
1637 | POPSTACK; | |
1638 | LEAVE; | |
1639 | return retval; | |
1640 | } | |
1641 | ||
a0d0e21e | 1642 | int |
864dbfa3 | 1643 | Perl_magic_setdbline(pTHX_ SV *sv, MAGIC *mg) |
79072805 LW |
1644 | { |
1645 | OP *o; | |
1646 | I32 i; | |
1647 | GV* gv; | |
1648 | SV** svp; | |
2d8e6c8d | 1649 | STRLEN n_a; |
79072805 | 1650 | |
3280af22 | 1651 | gv = PL_DBline; |
79072805 | 1652 | i = SvTRUE(sv); |
188ea221 | 1653 | svp = av_fetch(GvAV(gv), |
2d8e6c8d | 1654 | atoi(MgPV(mg,n_a)), FALSE); |
5df8de69 DM |
1655 | if (svp && SvIOKp(*svp) && (o = INT2PTR(OP*,SvIVX(*svp)))) { |
1656 | /* set or clear breakpoint in the relevant control op */ | |
1657 | if (i) | |
1658 | o->op_flags |= OPf_SPECIAL; | |
1659 | else | |
1660 | o->op_flags &= ~OPf_SPECIAL; | |
1661 | } | |
79072805 LW |
1662 | return 0; |
1663 | } | |
1664 | ||
1665 | int | |
864dbfa3 | 1666 | Perl_magic_getarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1667 | { |
3280af22 | 1668 | sv_setiv(sv, AvFILL((AV*)mg->mg_obj) + PL_curcop->cop_arybase); |
79072805 LW |
1669 | return 0; |
1670 | } | |
1671 | ||
1672 | int | |
864dbfa3 | 1673 | Perl_magic_setarylen(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1674 | { |
3280af22 | 1675 | av_fill((AV*)mg->mg_obj, SvIV(sv) - PL_curcop->cop_arybase); |
a0d0e21e LW |
1676 | return 0; |
1677 | } | |
1678 | ||
1679 | int | |
864dbfa3 | 1680 | Perl_magic_getpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1681 | { |
1682 | SV* lsv = LvTARG(sv); | |
ac27b0f5 | 1683 | |
a0d0e21e | 1684 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) { |
14befaf4 | 1685 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
565764a8 | 1686 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 1687 | I32 i = mg->mg_len; |
7e2040f0 | 1688 | if (DO_UTF8(lsv)) |
a0ed51b3 LW |
1689 | sv_pos_b2u(lsv, &i); |
1690 | sv_setiv(sv, i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
1691 | return 0; |
1692 | } | |
1693 | } | |
0c34ef67 | 1694 | SvOK_off(sv); |
a0d0e21e LW |
1695 | return 0; |
1696 | } | |
1697 | ||
1698 | int | |
864dbfa3 | 1699 | Perl_magic_setpos(pTHX_ SV *sv, MAGIC *mg) |
a0d0e21e LW |
1700 | { |
1701 | SV* lsv = LvTARG(sv); | |
1702 | SSize_t pos; | |
1703 | STRLEN len; | |
c00206c8 | 1704 | STRLEN ulen = 0; |
a0d0e21e LW |
1705 | |
1706 | mg = 0; | |
ac27b0f5 | 1707 | |
a0d0e21e | 1708 | if (SvTYPE(lsv) >= SVt_PVMG && SvMAGIC(lsv)) |
14befaf4 | 1709 | mg = mg_find(lsv, PERL_MAGIC_regex_global); |
a0d0e21e LW |
1710 | if (!mg) { |
1711 | if (!SvOK(sv)) | |
1712 | return 0; | |
14befaf4 DM |
1713 | sv_magic(lsv, (SV*)0, PERL_MAGIC_regex_global, Nullch, 0); |
1714 | mg = mg_find(lsv, PERL_MAGIC_regex_global); | |
a0d0e21e LW |
1715 | } |
1716 | else if (!SvOK(sv)) { | |
565764a8 | 1717 | mg->mg_len = -1; |
a0d0e21e LW |
1718 | return 0; |
1719 | } | |
1720 | len = SvPOK(lsv) ? SvCUR(lsv) : sv_len(lsv); | |
1721 | ||
c485e607 | 1722 | pos = SvIV(sv) - PL_curcop->cop_arybase; |
a0ed51b3 | 1723 | |
7e2040f0 | 1724 | if (DO_UTF8(lsv)) { |
a0ed51b3 LW |
1725 | ulen = sv_len_utf8(lsv); |
1726 | if (ulen) | |
1727 | len = ulen; | |
a0ed51b3 LW |
1728 | } |
1729 | ||
a0d0e21e LW |
1730 | if (pos < 0) { |
1731 | pos += len; | |
1732 | if (pos < 0) | |
1733 | pos = 0; | |
1734 | } | |
eb160463 | 1735 | else if (pos > (SSize_t)len) |
a0d0e21e | 1736 | pos = len; |
a0ed51b3 LW |
1737 | |
1738 | if (ulen) { | |
1739 | I32 p = pos; | |
1740 | sv_pos_u2b(lsv, &p, 0); | |
1741 | pos = p; | |
1742 | } | |
727405f8 | 1743 | |
565764a8 | 1744 | mg->mg_len = pos; |
71be2cbc | 1745 | mg->mg_flags &= ~MGf_MINMATCH; |
a0d0e21e | 1746 | |
79072805 LW |
1747 | return 0; |
1748 | } | |
1749 | ||
1750 | int | |
864dbfa3 | 1751 | Perl_magic_getglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1752 | { |
dd374669 | 1753 | (void)mg; |
8646b087 | 1754 | if (SvFAKE(sv)) { /* FAKE globs can get coerced */ |
1755 | SvFAKE_off(sv); | |
946ec16e | 1756 | gv_efullname3(sv,((GV*)sv), "*"); |
8646b087 | 1757 | SvFAKE_on(sv); |
1758 | } | |
1759 | else | |
946ec16e | 1760 | gv_efullname3(sv,((GV*)sv), "*"); /* a gv value, be nice */ |
79072805 LW |
1761 | return 0; |
1762 | } | |
1763 | ||
1764 | int | |
864dbfa3 | 1765 | Perl_magic_setglob(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1766 | { |
79072805 | 1767 | GV* gv; |
dd374669 | 1768 | (void)mg; |
7a5fd60d | 1769 | |
79072805 LW |
1770 | if (!SvOK(sv)) |
1771 | return 0; | |
7a5fd60d | 1772 | gv = gv_fetchsv(sv,TRUE, SVt_PVGV); |
79072805 LW |
1773 | if (sv == (SV*)gv) |
1774 | return 0; | |
1775 | if (GvGP(sv)) | |
88e89b8a | 1776 | gp_free((GV*)sv); |
79072805 | 1777 | GvGP(sv) = gp_ref(GvGP(gv)); |
79072805 LW |
1778 | return 0; |
1779 | } | |
1780 | ||
1781 | int | |
864dbfa3 | 1782 | Perl_magic_getsubstr(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 GS |
1783 | { |
1784 | STRLEN len; | |
35a4481c AL |
1785 | SV * const lsv = LvTARG(sv); |
1786 | const char * const tmps = SvPV(lsv,len); | |
6ff81951 GS |
1787 | I32 offs = LvTARGOFF(sv); |
1788 | I32 rem = LvTARGLEN(sv); | |
dd374669 | 1789 | (void)mg; |
6ff81951 | 1790 | |
9aa983d2 JH |
1791 | if (SvUTF8(lsv)) |
1792 | sv_pos_u2b(lsv, &offs, &rem); | |
eb160463 | 1793 | if (offs > (I32)len) |
6ff81951 | 1794 | offs = len; |
eb160463 | 1795 | if (rem + offs > (I32)len) |
6ff81951 GS |
1796 | rem = len - offs; |
1797 | sv_setpvn(sv, tmps + offs, (STRLEN)rem); | |
9aa983d2 | 1798 | if (SvUTF8(lsv)) |
2ef4b674 | 1799 | SvUTF8_on(sv); |
6ff81951 GS |
1800 | return 0; |
1801 | } | |
1802 | ||
1803 | int | |
864dbfa3 | 1804 | Perl_magic_setsubstr(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1805 | { |
9aa983d2 JH |
1806 | STRLEN len; |
1807 | char *tmps = SvPV(sv, len); | |
dd374669 | 1808 | SV * const lsv = LvTARG(sv); |
9aa983d2 JH |
1809 | I32 lvoff = LvTARGOFF(sv); |
1810 | I32 lvlen = LvTARGLEN(sv); | |
dd374669 | 1811 | (void)mg; |
075a4a2b | 1812 | |
1aa99e6b | 1813 | if (DO_UTF8(sv)) { |
9aa983d2 JH |
1814 | sv_utf8_upgrade(lsv); |
1815 | sv_pos_u2b(lsv, &lvoff, &lvlen); | |
1816 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
b76f3ce2 | 1817 | LvTARGLEN(sv) = sv_len_utf8(sv); |
9aa983d2 JH |
1818 | SvUTF8_on(lsv); |
1819 | } | |
9bf12eaf | 1820 | else if (lsv && SvUTF8(lsv)) { |
9aa983d2 | 1821 | sv_pos_u2b(lsv, &lvoff, &lvlen); |
b76f3ce2 | 1822 | LvTARGLEN(sv) = len; |
e95af362 | 1823 | tmps = (char*)bytes_to_utf8((U8*)tmps, &len); |
9aa983d2 JH |
1824 | sv_insert(lsv, lvoff, lvlen, tmps, len); |
1825 | Safefree(tmps); | |
1aa99e6b | 1826 | } |
b76f3ce2 GB |
1827 | else { |
1828 | sv_insert(lsv, lvoff, lvlen, tmps, len); | |
1829 | LvTARGLEN(sv) = len; | |
1830 | } | |
1831 | ||
1aa99e6b | 1832 | |
79072805 LW |
1833 | return 0; |
1834 | } | |
1835 | ||
1836 | int | |
864dbfa3 | 1837 | Perl_magic_gettaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1838 | { |
565764a8 | 1839 | TAINT_IF((mg->mg_len & 1) || |
155aba94 | 1840 | ((mg->mg_len & 2) && mg->mg_obj == sv)); /* kludge */ |
463ee0b2 LW |
1841 | return 0; |
1842 | } | |
1843 | ||
1844 | int | |
864dbfa3 | 1845 | Perl_magic_settaint(pTHX_ SV *sv, MAGIC *mg) |
463ee0b2 | 1846 | { |
dd374669 | 1847 | (void)sv; |
3280af22 NIS |
1848 | if (PL_localizing) { |
1849 | if (PL_localizing == 1) | |
565764a8 | 1850 | mg->mg_len <<= 1; |
748a9306 | 1851 | else |
565764a8 | 1852 | mg->mg_len >>= 1; |
a0d0e21e | 1853 | } |
3280af22 | 1854 | else if (PL_tainted) |
565764a8 | 1855 | mg->mg_len |= 1; |
748a9306 | 1856 | else |
565764a8 | 1857 | mg->mg_len &= ~1; |
463ee0b2 LW |
1858 | return 0; |
1859 | } | |
1860 | ||
1861 | int | |
864dbfa3 | 1862 | Perl_magic_getvec(pTHX_ SV *sv, MAGIC *mg) |
6ff81951 | 1863 | { |
35a4481c | 1864 | SV * const lsv = LvTARG(sv); |
dd374669 | 1865 | (void)mg; |
6ff81951 GS |
1866 | |
1867 | if (!lsv) { | |
0c34ef67 | 1868 | SvOK_off(sv); |
6ff81951 GS |
1869 | return 0; |
1870 | } | |
6ff81951 | 1871 | |
81e118e0 | 1872 | sv_setuv(sv, do_vecget(lsv, LvTARGOFF(sv), LvTARGLEN(sv))); |
6ff81951 GS |
1873 | return 0; |
1874 | } | |
1875 | ||
1876 | int | |
864dbfa3 | 1877 | Perl_magic_setvec(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1878 | { |
dd374669 | 1879 | (void)mg; |
79072805 LW |
1880 | do_vecset(sv); /* XXX slurp this routine */ |
1881 | return 0; | |
1882 | } | |
1883 | ||
1884 | int | |
864dbfa3 | 1885 | Perl_magic_getdefelem(pTHX_ SV *sv, MAGIC *mg) |
5f05dabc | 1886 | { |
71be2cbc | 1887 | SV *targ = Nullsv; |
5f05dabc | 1888 | if (LvTARGLEN(sv)) { |
68dc0745 | 1889 | if (mg->mg_obj) { |
74e13ce4 | 1890 | SV *ahv = LvTARG(sv); |
6d822dc4 MS |
1891 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, FALSE, 0); |
1892 | if (he) | |
1893 | targ = HeVAL(he); | |
68dc0745 | 1894 | } |
1895 | else { | |
3c78fafa | 1896 | AV* av = (AV*)LvTARG(sv); |
68dc0745 | 1897 | if ((I32)LvTARGOFF(sv) <= AvFILL(av)) |
1898 | targ = AvARRAY(av)[LvTARGOFF(sv)]; | |
1899 | } | |
3280af22 | 1900 | if (targ && targ != &PL_sv_undef) { |
68dc0745 | 1901 | /* somebody else defined it for us */ |
1902 | SvREFCNT_dec(LvTARG(sv)); | |
1903 | LvTARG(sv) = SvREFCNT_inc(targ); | |
1904 | LvTARGLEN(sv) = 0; | |
1905 | SvREFCNT_dec(mg->mg_obj); | |
1906 | mg->mg_obj = Nullsv; | |
1907 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
1908 | } | |
5f05dabc | 1909 | } |
71be2cbc | 1910 | else |
1911 | targ = LvTARG(sv); | |
3280af22 | 1912 | sv_setsv(sv, targ ? targ : &PL_sv_undef); |
71be2cbc | 1913 | return 0; |
1914 | } | |
1915 | ||
1916 | int | |
864dbfa3 | 1917 | Perl_magic_setdefelem(pTHX_ SV *sv, MAGIC *mg) |
71be2cbc | 1918 | { |
dd374669 | 1919 | (void)mg; |
71be2cbc | 1920 | if (LvTARGLEN(sv)) |
68dc0745 | 1921 | vivify_defelem(sv); |
1922 | if (LvTARG(sv)) { | |
5f05dabc | 1923 | sv_setsv(LvTARG(sv), sv); |
68dc0745 | 1924 | SvSETMAGIC(LvTARG(sv)); |
1925 | } | |
5f05dabc | 1926 | return 0; |
1927 | } | |
1928 | ||
71be2cbc | 1929 | void |
864dbfa3 | 1930 | Perl_vivify_defelem(pTHX_ SV *sv) |
71be2cbc | 1931 | { |
74e13ce4 GS |
1932 | MAGIC *mg; |
1933 | SV *value = Nullsv; | |
71be2cbc | 1934 | |
14befaf4 | 1935 | if (!LvTARGLEN(sv) || !(mg = mg_find(sv, PERL_MAGIC_defelem))) |
71be2cbc | 1936 | return; |
68dc0745 | 1937 | if (mg->mg_obj) { |
74e13ce4 | 1938 | SV *ahv = LvTARG(sv); |
2d8e6c8d | 1939 | STRLEN n_a; |
6d822dc4 MS |
1940 | HE *he = hv_fetch_ent((HV*)ahv, mg->mg_obj, TRUE, 0); |
1941 | if (he) | |
1942 | value = HeVAL(he); | |
3280af22 | 1943 | if (!value || value == &PL_sv_undef) |
cea2e8a9 | 1944 | Perl_croak(aTHX_ PL_no_helem, SvPV(mg->mg_obj, n_a)); |
71be2cbc | 1945 | } |
68dc0745 | 1946 | else { |
1947 | AV* av = (AV*)LvTARG(sv); | |
5aabfad6 | 1948 | if ((I32)LvTARGLEN(sv) < 0 && (I32)LvTARGOFF(sv) > AvFILL(av)) |
68dc0745 | 1949 | LvTARG(sv) = Nullsv; /* array can't be extended */ |
1950 | else { | |
1951 | SV** svp = av_fetch(av, LvTARGOFF(sv), TRUE); | |
3280af22 | 1952 | if (!svp || (value = *svp) == &PL_sv_undef) |
cea2e8a9 | 1953 | Perl_croak(aTHX_ PL_no_aelem, (I32)LvTARGOFF(sv)); |
68dc0745 | 1954 | } |
1955 | } | |
3e3baf6d | 1956 | (void)SvREFCNT_inc(value); |
68dc0745 | 1957 | SvREFCNT_dec(LvTARG(sv)); |
1958 | LvTARG(sv) = value; | |
71be2cbc | 1959 | LvTARGLEN(sv) = 0; |
68dc0745 | 1960 | SvREFCNT_dec(mg->mg_obj); |
1961 | mg->mg_obj = Nullsv; | |
1962 | mg->mg_flags &= ~MGf_REFCOUNTED; | |
5f05dabc | 1963 | } |
1964 | ||
1965 | int | |
864dbfa3 | 1966 | Perl_magic_killbackrefs(pTHX_ SV *sv, MAGIC *mg) |
810b8aa5 GS |
1967 | { |
1968 | AV *av = (AV*)mg->mg_obj; | |
1969 | SV **svp = AvARRAY(av); | |
1970 | I32 i = AvFILLp(av); | |
dd374669 AL |
1971 | (void)sv; |
1972 | ||
810b8aa5 | 1973 | while (i >= 0) { |
fdc9a813 | 1974 | if (svp[i]) { |
810b8aa5 | 1975 | if (!SvWEAKREF(svp[i])) |
cea2e8a9 | 1976 | Perl_croak(aTHX_ "panic: magic_killbackrefs"); |
810b8aa5 | 1977 | /* XXX Should we check that it hasn't changed? */ |
b162af07 | 1978 | SvRV_set(svp[i], 0); |
0c34ef67 | 1979 | SvOK_off(svp[i]); |
810b8aa5 | 1980 | SvWEAKREF_off(svp[i]); |
fdc9a813 | 1981 | svp[i] = Nullsv; |
810b8aa5 GS |
1982 | } |
1983 | i--; | |
1984 | } | |
d99b02a1 | 1985 | SvREFCNT_dec(av); /* remove extra count added by sv_add_backref() */ |
810b8aa5 GS |
1986 | return 0; |
1987 | } | |
1988 | ||
1989 | int | |
864dbfa3 | 1990 | Perl_magic_setmglob(pTHX_ SV *sv, MAGIC *mg) |
93a17b20 | 1991 | { |
565764a8 | 1992 | mg->mg_len = -1; |
c6496cc7 | 1993 | SvSCREAM_off(sv); |
93a17b20 LW |
1994 | return 0; |
1995 | } | |
1996 | ||
1997 | int | |
864dbfa3 | 1998 | Perl_magic_setbm(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 1999 | { |
dd374669 | 2000 | (void)mg; |
14befaf4 | 2001 | sv_unmagic(sv, PERL_MAGIC_bm); |
79072805 LW |
2002 | SvVALID_off(sv); |
2003 | return 0; | |
2004 | } | |
2005 | ||
2006 | int | |
864dbfa3 | 2007 | Perl_magic_setfm(pTHX_ SV *sv, MAGIC *mg) |
55497cff | 2008 | { |
dd374669 | 2009 | (void)mg; |
14befaf4 | 2010 | sv_unmagic(sv, PERL_MAGIC_fm); |
55497cff | 2011 | SvCOMPILED_off(sv); |
2012 | return 0; | |
2013 | } | |
2014 | ||
2015 | int | |
864dbfa3 | 2016 | Perl_magic_setuvar(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2017 | { |
35a4481c | 2018 | const struct ufuncs * const uf = (struct ufuncs *)mg->mg_ptr; |
79072805 LW |
2019 | |
2020 | if (uf && uf->uf_set) | |
24f81a43 | 2021 | (*uf->uf_set)(aTHX_ uf->uf_index, sv); |
79072805 LW |
2022 | return 0; |
2023 | } | |
2024 | ||
c277df42 | 2025 | int |
faf82a0b AE |
2026 | Perl_magic_setregexp(pTHX_ SV *sv, MAGIC *mg) |
2027 | { | |
dd374669 | 2028 | (void)mg; |
faf82a0b AE |
2029 | sv_unmagic(sv, PERL_MAGIC_qr); |
2030 | return 0; | |
2031 | } | |
2032 | ||
2033 | int | |
864dbfa3 | 2034 | Perl_magic_freeregexp(pTHX_ SV *sv, MAGIC *mg) |
c277df42 IZ |
2035 | { |
2036 | regexp *re = (regexp *)mg->mg_obj; | |
2037 | ReREFCNT_dec(re); | |
dd374669 | 2038 | (void)sv; |
c277df42 IZ |
2039 | return 0; |
2040 | } | |
2041 | ||
7a4c00b4 | 2042 | #ifdef USE_LOCALE_COLLATE |
79072805 | 2043 | int |
864dbfa3 | 2044 | Perl_magic_setcollxfrm(pTHX_ SV *sv, MAGIC *mg) |
bbce6d69 | 2045 | { |
2046 | /* | |
838b5b74 | 2047 | * RenE<eacute> Descartes said "I think not." |
bbce6d69 | 2048 | * and vanished with a faint plop. |
2049 | */ | |
dd374669 | 2050 | (void)sv; |
7a4c00b4 | 2051 | if (mg->mg_ptr) { |
2052 | Safefree(mg->mg_ptr); | |
2053 | mg->mg_ptr = NULL; | |
565764a8 | 2054 | mg->mg_len = -1; |
7a4c00b4 | 2055 | } |
bbce6d69 | 2056 | return 0; |
2057 | } | |
7a4c00b4 | 2058 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 2059 | |
7e8c5dac HS |
2060 | /* Just clear the UTF-8 cache data. */ |
2061 | int | |
2062 | Perl_magic_setutf8(pTHX_ SV *sv, MAGIC *mg) | |
2063 | { | |
dd374669 | 2064 | (void)sv; |
7e8c5dac HS |
2065 | Safefree(mg->mg_ptr); /* The mg_ptr holds the pos cache. */ |
2066 | mg->mg_ptr = 0; | |
2067 | mg->mg_len = -1; /* The mg_len holds the len cache. */ | |
2068 | return 0; | |
2069 | } | |
2070 | ||
bbce6d69 | 2071 | int |
864dbfa3 | 2072 | Perl_magic_set(pTHX_ SV *sv, MAGIC *mg) |
79072805 | 2073 | { |
e1ec3a88 | 2074 | register const char *s; |
79072805 | 2075 | I32 i; |
8990e307 | 2076 | STRLEN len; |
79072805 | 2077 | switch (*mg->mg_ptr) { |
748a9306 | 2078 | case '\001': /* ^A */ |
3280af22 | 2079 | sv_setsv(PL_bodytarget, sv); |
748a9306 | 2080 | break; |
49460fe6 | 2081 | case '\003': /* ^C */ |
eb160463 | 2082 | PL_minus_c = (bool)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
49460fe6 NIS |
2083 | break; |
2084 | ||
79072805 | 2085 | case '\004': /* ^D */ |
b4ab917c DM |
2086 | #ifdef DEBUGGING |
2087 | s = SvPV_nolen(sv); | |
ddcf8bc1 | 2088 | PL_debug = get_debug_opts(&s, 0) | DEBUG_TOP_FLAG; |
79072805 | 2089 | DEBUG_x(dump_all()); |
b4ab917c DM |
2090 | #else |
2091 | PL_debug = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) | DEBUG_TOP_FLAG; | |
2092 | #endif | |
79072805 | 2093 | break; |
28f23441 | 2094 | case '\005': /* ^E */ |
d0063567 | 2095 | if (*(mg->mg_ptr+1) == '\0') { |
cd39f2b6 | 2096 | #ifdef MACOS_TRADITIONAL |
d0063567 | 2097 | gMacPerl_OSErr = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
28f23441 | 2098 | #else |
cd39f2b6 | 2099 | # ifdef VMS |
d0063567 | 2100 | set_vaxc_errno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
048c1ddf | 2101 | # else |
cd39f2b6 | 2102 | # ifdef WIN32 |
d0063567 | 2103 | SetLastError( SvIV(sv) ); |
cd39f2b6 | 2104 | # else |
9fed8b87 | 2105 | # ifdef OS2 |
d0063567 | 2106 | os2_setsyserrno(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
9fed8b87 | 2107 | # else |
d0063567 DK |
2108 | /* will anyone ever use this? */ |
2109 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv), 4); | |
cd39f2b6 | 2110 | # endif |
048c1ddf IZ |
2111 | # endif |
2112 | # endif | |
22fae026 | 2113 | #endif |
d0063567 DK |
2114 | } |
2115 | else if (strEQ(mg->mg_ptr+1, "NCODING")) { | |
2116 | if (PL_encoding) | |
2117 | SvREFCNT_dec(PL_encoding); | |
2118 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2119 | PL_encoding = newSVsv(sv); | |
2120 | } | |
2121 | else { | |
2122 | PL_encoding = Nullsv; | |
2123 | } | |
2124 | } | |
2125 | break; | |
79072805 | 2126 | case '\006': /* ^F */ |
3280af22 | 2127 | PL_maxsysfd = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 | 2128 | break; |
a0d0e21e | 2129 | case '\010': /* ^H */ |
3280af22 | 2130 | PL_hints = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
a0d0e21e | 2131 | break; |
9d116dd7 | 2132 | case '\011': /* ^I */ /* NOT \t in EBCDIC */ |
3280af22 NIS |
2133 | if (PL_inplace) |
2134 | Safefree(PL_inplace); | |
79072805 | 2135 | if (SvOK(sv)) |
2e0de35c | 2136 | PL_inplace = savesvpv(sv); |
79072805 | 2137 | else |
3280af22 | 2138 | PL_inplace = Nullch; |
79072805 | 2139 | break; |
28f23441 | 2140 | case '\017': /* ^O */ |
ac27b0f5 | 2141 | if (*(mg->mg_ptr+1) == '\0') { |
1bf29663 | 2142 | if (PL_osname) { |
ac27b0f5 | 2143 | Safefree(PL_osname); |
1bf29663 DM |
2144 | PL_osname = Nullch; |
2145 | } | |
3511154c DM |
2146 | if (SvOK(sv)) { |
2147 | TAINT_PROPER("assigning to $^O"); | |
2e0de35c | 2148 | PL_osname = savesvpv(sv); |
3511154c | 2149 | } |
ac27b0f5 NIS |
2150 | } |
2151 | else if (strEQ(mg->mg_ptr, "\017PEN")) { | |
2152 | if (!PL_compiling.cop_io) | |
2153 | PL_compiling.cop_io = newSVsv(sv); | |
2154 | else | |
2155 | sv_setsv(PL_compiling.cop_io,sv); | |
2156 | } | |
28f23441 | 2157 | break; |
79072805 | 2158 | case '\020': /* ^P */ |
3280af22 | 2159 | PL_perldb = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
f2a7f298 | 2160 | if (PL_perldb && !PL_DBsingle) |
1ee4443e | 2161 | init_debugger(); |
79072805 LW |
2162 | break; |
2163 | case '\024': /* ^T */ | |
88e89b8a | 2164 | #ifdef BIG_TIME |
6b88bc9c | 2165 | PL_basetime = (Time_t)(SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)); |
88e89b8a | 2166 | #else |
3280af22 | 2167 | PL_basetime = (Time_t)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
88e89b8a | 2168 | #endif |
79072805 | 2169 | break; |
fde18df1 | 2170 | case '\027': /* ^W & $^WARNING_BITS */ |
4438c4b7 JH |
2171 | if (*(mg->mg_ptr+1) == '\0') { |
2172 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { | |
2173 | i = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); | |
ac27b0f5 | 2174 | PL_dowarn = (PL_dowarn & ~G_WARN_ON) |
0453d815 | 2175 | | (i ? G_WARN_ON : G_WARN_OFF) ; |
4438c4b7 | 2176 | } |
599cee73 | 2177 | } |
0a378802 | 2178 | else if (strEQ(mg->mg_ptr+1, "ARNING_BITS")) { |
4438c4b7 | 2179 | if ( ! (PL_dowarn & G_WARN_ALL_MASK)) { |
d775746e GS |
2180 | if (!SvPOK(sv) && PL_localizing) { |
2181 | sv_setpvn(sv, WARN_NONEstring, WARNsize); | |
d3a7d8c7 | 2182 | PL_compiling.cop_warnings = pWARN_NONE; |
d775746e GS |
2183 | break; |
2184 | } | |
f4fc7782 | 2185 | { |
b5477537 | 2186 | STRLEN len, i; |
d3a7d8c7 | 2187 | int accumulate = 0 ; |
f4fc7782 | 2188 | int any_fatals = 0 ; |
35a4481c | 2189 | const char * const ptr = (char*)SvPV(sv, len) ; |
f4fc7782 JH |
2190 | for (i = 0 ; i < len ; ++i) { |
2191 | accumulate |= ptr[i] ; | |
2192 | any_fatals |= (ptr[i] & 0xAA) ; | |
2193 | } | |
d3a7d8c7 GS |
2194 | if (!accumulate) |
2195 | PL_compiling.cop_warnings = pWARN_NONE; | |
f4fc7782 JH |
2196 | else if (isWARN_on(sv, WARN_ALL) && !any_fatals) { |
2197 | PL_compiling.cop_warnings = pWARN_ALL; | |
2198 | PL_dowarn |= G_WARN_ONCE ; | |
727405f8 | 2199 | } |
d3a7d8c7 GS |
2200 | else { |
2201 | if (specialWARN(PL_compiling.cop_warnings)) | |
2202 | PL_compiling.cop_warnings = newSVsv(sv) ; | |
2203 | else | |
2204 | sv_setsv(PL_compiling.cop_warnings, sv); | |
2205 | if (isWARN_on(PL_compiling.cop_warnings, WARN_ONCE)) | |
2206 | PL_dowarn |= G_WARN_ONCE ; | |
2207 | } | |
f4fc7782 | 2208 | |
d3a7d8c7 | 2209 | } |
4438c4b7 | 2210 | } |
971a9dd3 | 2211 | } |
79072805 LW |
2212 | break; |
2213 | case '.': | |
3280af22 NIS |
2214 | if (PL_localizing) { |
2215 | if (PL_localizing == 1) | |
7766f137 | 2216 | SAVESPTR(PL_last_in_gv); |
748a9306 | 2217 | } |
3280af22 | 2218 | else if (SvOK(sv) && GvIO(PL_last_in_gv)) |
632db599 | 2219 | IoLINES(GvIOp(PL_last_in_gv)) = SvIV(sv); |
79072805 LW |
2220 | break; |
2221 | case '^': | |
3280af22 | 2222 | Safefree(IoTOP_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2223 | s = IoTOP_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
7a5fd60d | 2224 | IoTOP_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv,TRUE, SVt_PVIO); |
79072805 LW |
2225 | break; |
2226 | case '~': | |
3280af22 | 2227 | Safefree(IoFMT_NAME(GvIOp(PL_defoutgv))); |
e1ec3a88 | 2228 | s = IoFMT_NAME(GvIOp(PL_defoutgv)) = savesvpv(sv); |
7a5fd60d | 2229 | IoFMT_GV(GvIOp(PL_defoutgv)) = gv_fetchsv(sv,TRUE, SVt_PVIO); |
79072805 LW |
2230 | break; |
2231 | case '=': | |
632db599 | 2232 | IoPAGE_LEN(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2233 | break; |
2234 | case '-': | |
632db599 | 2235 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
3280af22 NIS |
2236 | if (IoLINES_LEFT(GvIOp(PL_defoutgv)) < 0L) |
2237 | IoLINES_LEFT(GvIOp(PL_defoutgv)) = 0L; | |
79072805 LW |
2238 | break; |
2239 | case '%': | |
632db599 | 2240 | IoPAGE(GvIOp(PL_defoutgv)) = (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); |
79072805 LW |
2241 | break; |
2242 | case '|': | |
4b65379b | 2243 | { |
3280af22 | 2244 | IO *io = GvIOp(PL_defoutgv); |
720f287d AB |
2245 | if(!io) |
2246 | break; | |
4b65379b CS |
2247 | if ((SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) == 0) |
2248 | IoFLAGS(io) &= ~IOf_FLUSH; | |
2249 | else { | |
2250 | if (!(IoFLAGS(io) & IOf_FLUSH)) { | |
2251 | PerlIO *ofp = IoOFP(io); | |
2252 | if (ofp) | |
2253 | (void)PerlIO_flush(ofp); | |
2254 | IoFLAGS(io) |= IOf_FLUSH; | |
2255 | } | |
2256 | } | |
79072805 LW |
2257 | } |
2258 | break; | |
79072805 | 2259 | case '/': |
3280af22 | 2260 | SvREFCNT_dec(PL_rs); |
8bfdd7d9 | 2261 | PL_rs = newSVsv(sv); |
79072805 LW |
2262 | break; |
2263 | case '\\': | |
7889fe52 NIS |
2264 | if (PL_ors_sv) |
2265 | SvREFCNT_dec(PL_ors_sv); | |
009c130f | 2266 | if (SvOK(sv) || SvGMAGICAL(sv)) { |
7889fe52 | 2267 | PL_ors_sv = newSVsv(sv); |
009c130f | 2268 | } |
e3c19b7b | 2269 | else { |
7889fe52 | 2270 | PL_ors_sv = Nullsv; |
e3c19b7b | 2271 | } |
79072805 LW |
2272 | break; |
2273 | case ',': | |
7889fe52 NIS |
2274 | if (PL_ofs_sv) |
2275 | SvREFCNT_dec(PL_ofs_sv); | |
2276 | if (SvOK(sv) || SvGMAGICAL(sv)) { | |
2277 | PL_ofs_sv = newSVsv(sv); | |
2278 | } | |
2279 | else { | |
2280 | PL_ofs_sv = Nullsv; | |
2281 | } | |
79072805 LW |
2282 | break; |
2283 | case '#': | |
3280af22 NIS |
2284 | if (PL_ofmt) |
2285 | Safefree(PL_ofmt); | |
2e0de35c | 2286 | PL_ofmt = savesvpv(sv); |
79072805 LW |
2287 | break; |
2288 | case '[': | |
3280af22 | 2289 | PL_compiling.cop_arybase = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
79072805 LW |
2290 | break; |
2291 | case '?': | |
ff0cee69 | 2292 | #ifdef COMPLEX_STATUS |
6b88bc9c GS |
2293 | if (PL_localizing == 2) { |
2294 | PL_statusvalue = LvTARGOFF(sv); | |
2295 | PL_statusvalue_vms = LvTARGLEN(sv); | |
ff0cee69 | 2296 | } |
2297 | else | |
2298 | #endif | |
2299 | #ifdef VMSISH_STATUS | |
2300 | if (VMSISH_STATUS) | |
2301 | STATUS_NATIVE_SET((U32)(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))); | |
2302 | else | |
2303 | #endif | |
2304 | STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)); | |
79072805 LW |
2305 | break; |
2306 | case '!': | |
93189314 JH |
2307 | { |
2308 | #ifdef VMS | |
2309 | # define PERL_VMS_BANG vaxc$errno | |
2310 | #else | |
2311 | # define PERL_VMS_BANG 0 | |
2312 | #endif | |
91487cfc | 2313 | SETERRNO(SvIOK(sv) ? SvIVX(sv) : SvOK(sv) ? sv_2iv(sv) : 0, |
93189314 JH |
2314 | (SvIV(sv) == EVMSERR) ? 4 : PERL_VMS_BANG); |
2315 | } | |
79072805 LW |
2316 | break; |
2317 | case '<': | |
3280af22 NIS |
2318 | PL_uid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2319 | if (PL_delaymagic) { | |
2320 | PL_delaymagic |= DM_RUID; | |
79072805 LW |
2321 | break; /* don't do magic till later */ |
2322 | } | |
2323 | #ifdef HAS_SETRUID | |
b28d0864 | 2324 | (void)setruid((Uid_t)PL_uid); |
79072805 LW |
2325 | #else |
2326 | #ifdef HAS_SETREUID | |
3280af22 | 2327 | (void)setreuid((Uid_t)PL_uid, (Uid_t)-1); |
748a9306 | 2328 | #else |
85e6fe83 | 2329 | #ifdef HAS_SETRESUID |
b28d0864 | 2330 | (void)setresuid((Uid_t)PL_uid, (Uid_t)-1, (Uid_t)-1); |
79072805 | 2331 | #else |
75870ed3 | 2332 | if (PL_uid == PL_euid) { /* special case $< = $> */ |
2333 | #ifdef PERL_DARWIN | |
2334 | /* workaround for Darwin's setuid peculiarity, cf [perl #24122] */ | |
2335 | if (PL_uid != 0 && PerlProc_getuid() == 0) | |
2336 | (void)PerlProc_setuid(0); | |
2337 | #endif | |
b28d0864 | 2338 | (void)PerlProc_setuid(PL_uid); |
75870ed3 | 2339 | } else { |
d8eceb89 | 2340 | PL_uid = PerlProc_getuid(); |
cea2e8a9 | 2341 | Perl_croak(aTHX_ "setruid() not implemented"); |
a0d0e21e | 2342 | } |
79072805 LW |
2343 | #endif |
2344 | #endif | |
85e6fe83 | 2345 | #endif |
d8eceb89 | 2346 | PL_uid = PerlProc_getuid(); |
3280af22 | 2347 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2348 | break; |
2349 | case '>': | |
3280af22 NIS |
2350 | PL_euid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2351 | if (PL_delaymagic) { | |
2352 | PL_delaymagic |= DM_EUID; | |
79072805 LW |
2353 | break; /* don't do magic till later */ |
2354 | } | |
2355 | #ifdef HAS_SETEUID | |
3280af22 | 2356 | (void)seteuid((Uid_t)PL_euid); |
79072805 LW |
2357 | #else |
2358 | #ifdef HAS_SETREUID | |
b28d0864 | 2359 | (void)setreuid((Uid_t)-1, (Uid_t)PL_euid); |
85e6fe83 LW |
2360 | #else |
2361 | #ifdef HAS_SETRESUID | |
6b88bc9c | 2362 | (void)setresuid((Uid_t)-1, (Uid_t)PL_euid, (Uid_t)-1); |
79072805 | 2363 | #else |
b28d0864 NIS |
2364 | if (PL_euid == PL_uid) /* special case $> = $< */ |
2365 | PerlProc_setuid(PL_euid); | |
a0d0e21e | 2366 | else { |
e8ee3774 | 2367 | PL_euid = PerlProc_geteuid(); |
cea2e8a9 | 2368 | Perl_croak(aTHX_ "seteuid() not implemented"); |
a0d0e21e | 2369 | } |
79072805 LW |
2370 | #endif |
2371 | #endif | |
85e6fe83 | 2372 | #endif |
d8eceb89 | 2373 | PL_euid = PerlProc_geteuid(); |
3280af22 | 2374 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2375 | break; |
2376 | case '(': | |
3280af22 NIS |
2377 | PL_gid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
2378 | if (PL_delaymagic) { | |
2379 | PL_delaymagic |= DM_RGID; | |
79072805 LW |
2380 | break; /* don't do magic till later */ |
2381 | } | |
2382 | #ifdef HAS_SETRGID | |
b28d0864 | 2383 | (void)setrgid((Gid_t)PL_gid); |
79072805 LW |
2384 | #else |
2385 | #ifdef HAS_SETREGID | |
3280af22 | 2386 | (void)setregid((Gid_t)PL_gid, (Gid_t)-1); |
85e6fe83 LW |
2387 | #else |
2388 | #ifdef HAS_SETRESGID | |
b28d0864 | 2389 | (void)setresgid((Gid_t)PL_gid, (Gid_t)-1, (Gid_t) 1); |
79072805 | 2390 | #else |
b28d0864 NIS |
2391 | if (PL_gid == PL_egid) /* special case $( = $) */ |
2392 | (void)PerlProc_setgid(PL_gid); | |
748a9306 | 2393 | else { |
d8eceb89 | 2394 | PL_gid = PerlProc_getgid(); |
cea2e8a9 | 2395 | Perl_croak(aTHX_ "setrgid() not implemented"); |
748a9306 | 2396 | } |
79072805 LW |
2397 | #endif |
2398 | #endif | |
85e6fe83 | 2399 | #endif |
d8eceb89 | 2400 | PL_gid = PerlProc_getgid(); |
3280af22 | 2401 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2402 | break; |
2403 | case ')': | |
5cd24f17 | 2404 | #ifdef HAS_SETGROUPS |
2405 | { | |
35a4481c | 2406 | const char *p = SvPV(sv, len); |
5cd24f17 | 2407 | Groups_t gary[NGROUPS]; |
2408 | ||
5cd24f17 | 2409 | while (isSPACE(*p)) |
2410 | ++p; | |
2d4389e4 | 2411 | PL_egid = Atol(p); |
5cd24f17 | 2412 | for (i = 0; i < NGROUPS; ++i) { |
2413 | while (*p && !isSPACE(*p)) | |
2414 | ++p; | |
2415 | while (isSPACE(*p)) | |
2416 | ++p; | |
2417 | if (!*p) | |
2418 | break; | |
2d4389e4 | 2419 | gary[i] = Atol(p); |
5cd24f17 | 2420 | } |
8cc95fdb | 2421 | if (i) |
2422 | (void)setgroups(i, gary); | |
5cd24f17 | 2423 | } |
2424 | #else /* HAS_SETGROUPS */ | |
b28d0864 | 2425 | PL_egid = SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv); |
5cd24f17 | 2426 | #endif /* HAS_SETGROUPS */ |
3280af22 NIS |
2427 | if (PL_delaymagic) { |
2428 | PL_delaymagic |= DM_EGID; | |
79072805 LW |
2429 | break; /* don't do magic till later */ |
2430 | } | |
2431 | #ifdef HAS_SETEGID | |
3280af22 | 2432 | (void)setegid((Gid_t)PL_egid); |
79072805 LW |
2433 | #else |
2434 | #ifdef HAS_SETREGID | |
b28d0864 | 2435 | (void)setregid((Gid_t)-1, (Gid_t)PL_egid); |
85e6fe83 LW |
2436 | #else |
2437 | #ifdef HAS_SETRESGID | |
b28d0864 | 2438 | (void)setresgid((Gid_t)-1, (Gid_t)PL_egid, (Gid_t)-1); |
79072805 | 2439 | #else |
b28d0864 NIS |
2440 | if (PL_egid == PL_gid) /* special case $) = $( */ |
2441 | (void)PerlProc_setgid(PL_egid); | |
748a9306 | 2442 | else { |
d8eceb89 | 2443 | PL_egid = PerlProc_getegid(); |
cea2e8a9 | 2444 | Perl_croak(aTHX_ "setegid() not implemented"); |
748a9306 | 2445 | } |
79072805 LW |
2446 | #endif |
2447 | #endif | |
85e6fe83 | 2448 | #endif |
d8eceb89 | 2449 | PL_egid = PerlProc_getegid(); |
3280af22 | 2450 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
79072805 LW |
2451 | break; |
2452 | case ':': | |
2d8e6c8d | 2453 | PL_chopset = SvPV_force(sv,len); |
79072805 | 2454 | break; |
cd39f2b6 | 2455 | #ifndef MACOS_TRADITIONAL |
79072805 | 2456 | case '0': |
e2975953 | 2457 | LOCK_DOLLARZERO_MUTEX; |
4bc88a62 PS |
2458 | #ifdef HAS_SETPROCTITLE |
2459 | /* The BSDs don't show the argv[] in ps(1) output, they | |
2460 | * show a string from the process struct and provide | |
2461 | * the setproctitle() routine to manipulate that. */ | |
2462 | { | |
2463 | s = SvPV(sv, len); | |
98b76f99 | 2464 | # if __FreeBSD_version > 410001 |
9aad2c0e | 2465 | /* The leading "-" removes the "perl: " prefix, |
4bc88a62 PS |
2466 | * but not the "(perl) suffix from the ps(1) |
2467 | * output, because that's what ps(1) shows if the | |
2468 | * argv[] is modified. */ | |
6f2ad931 | 2469 | setproctitle("-%s", s); |
9aad2c0e | 2470 | # else /* old FreeBSDs, NetBSD, OpenBSD, anyBSD */ |
4bc88a62 PS |
2471 | /* This doesn't really work if you assume that |
2472 | * $0 = 'foobar'; will wipe out 'perl' from the $0 | |
2473 | * because in ps(1) output the result will be like | |
2474 | * sprintf("perl: %s (perl)", s) | |
2475 | * I guess this is a security feature: | |
2476 | * one (a user process) cannot get rid of the original name. | |
2477 | * --jhi */ | |
2478 | setproctitle("%s", s); | |
2479 | # endif | |
2480 | } | |
2481 | #endif | |
17aa7f3d JH |
2482 | #if defined(__hpux) && defined(PSTAT_SETCMD) |
2483 | { | |
2484 | union pstun un; | |
2485 | s = SvPV(sv, len); | |
6867be6d | 2486 | un.pst_command = (char *)s; |
17aa7f3d JH |
2487 | pstat(PSTAT_SETCMD, un, len, 0, 0); |
2488 | } | |
2489 | #endif | |
3cb9023d | 2490 | /* PL_origalen is set in perl_parse(). */ |
a0d0e21e | 2491 | s = SvPV_force(sv,len); |
6f698202 AMS |
2492 | if (len >= (STRLEN)PL_origalen-1) { |
2493 | /* Longer than original, will be truncated. We assume that | |
2494 | * PL_origalen bytes are available. */ | |
2495 | Copy(s, PL_origargv[0], PL_origalen-1, char); | |
79072805 LW |
2496 | } |
2497 | else { | |
54bfe034 JH |
2498 | /* Shorter than original, will be padded. */ |
2499 | Copy(s, PL_origargv[0], len, char); | |
2500 | PL_origargv[0][len] = 0; | |
2501 | memset(PL_origargv[0] + len + 1, | |
2502 | /* Is the space counterintuitive? Yes. | |
2503 | * (You were expecting \0?) | |
3cb9023d | 2504 | * Does it work? Seems to. (In Linux 2.4.20 at least.) |
54bfe034 JH |
2505 | * --jhi */ |
2506 | (int)' ', | |
2507 | PL_origalen - len - 1); | |
79072805 | 2508 | } |
ad7eccf4 JD |
2509 | PL_origargv[0][PL_origalen-1] = 0; |
2510 | for (i = 1; i < PL_origargc; i++) | |
2511 | PL_origargv[i] = 0; | |
e2975953 | 2512 | UNLOCK_DOLLARZERO_MUTEX; |
79072805 | 2513 | break; |
cd39f2b6 | 2514 | #endif |
79072805 LW |
2515 | } |
2516 | return 0; | |
2517 | } | |
2518 | ||
2519 | I32 | |
35a4481c | 2520 | Perl_whichsig(pTHX_ const char *sig) |
79072805 | 2521 | { |
27da23d5 | 2522 | register const char * const *sigv; |
79072805 | 2523 | |
e02bfb16 | 2524 | for (sigv = PL_sig_name; *sigv; sigv++) |
79072805 | 2525 | if (strEQ(sig,*sigv)) |
22c35a8c | 2526 | return PL_sig_num[sigv - PL_sig_name]; |
79072805 LW |
2527 | #ifdef SIGCLD |
2528 | if (strEQ(sig,"CHLD")) | |
2529 | return SIGCLD; | |
2530 | #endif | |
2531 | #ifdef SIGCHLD | |
2532 | if (strEQ(sig,"CLD")) | |
2533 | return SIGCHLD; | |
2534 | #endif | |
7f1236c0 | 2535 | return -1; |
79072805 LW |
2536 | } |
2537 | ||
ecfc5424 | 2538 | Signal_t |
cea2e8a9 | 2539 | Perl_sighandler(int sig) |
79072805 | 2540 | { |
1018e26f NIS |
2541 | #ifdef PERL_GET_SIG_CONTEXT |
2542 | dTHXa(PERL_GET_SIG_CONTEXT); | |
71d280e3 | 2543 | #else |
cea2e8a9 | 2544 | dTHX; |
71d280e3 | 2545 | #endif |
79072805 | 2546 | dSP; |
00d579c5 | 2547 | GV *gv = Nullgv; |
a0d0e21e | 2548 | HV *st; |
b7953727 | 2549 | SV *sv = Nullsv, *tSv = PL_Sv; |
00d579c5 | 2550 | CV *cv = Nullcv; |
533c011a | 2551 | OP *myop = PL_op; |
84902520 | 2552 | U32 flags = 0; |
3280af22 | 2553 | XPV *tXpv = PL_Xpv; |
71d280e3 | 2554 | |
3280af22 | 2555 | if (PL_savestack_ix + 15 <= PL_savestack_max) |
84902520 | 2556 | flags |= 1; |
3280af22 | 2557 | if (PL_markstack_ptr < PL_markstack_max - 2) |
84902520 | 2558 | flags |= 4; |
3280af22 | 2559 | if (PL_scopestack_ix < PL_scopestack_max - 3) |
84902520 TB |
2560 | flags |= 16; |
2561 | ||
727405f8 | 2562 | if (!PL_psig_ptr[sig]) { |
99ef548b | 2563 | PerlIO_printf(Perl_error_log, "Signal SIG%s received, but no signal handler set.\n", |
727405f8 NIS |
2564 | PL_sig_name[sig]); |
2565 | exit(sig); | |
2566 | } | |
ff0cee69 | 2567 | |
84902520 TB |
2568 | /* Max number of items pushed there is 3*n or 4. We cannot fix |
2569 | infinity, so we fix 4 (in fact 5): */ | |
2570 | if (flags & 1) { | |
3280af22 | 2571 | PL_savestack_ix += 5; /* Protect save in progress. */ |
c76ac1ee | 2572 | SAVEDESTRUCTOR_X(unwind_handler_stack, (void*)&flags); |
84902520 | 2573 | } |
ac27b0f5 | 2574 | if (flags & 4) |
3280af22 | 2575 | PL_markstack_ptr++; /* Protect mark. */ |
84902520 | 2576 | if (flags & 16) |
3280af22 | 2577 | PL_scopestack_ix += 1; |
84902520 | 2578 | /* sv_2cv is too complicated, try a simpler variant first: */ |
ac27b0f5 | 2579 | if (!SvROK(PL_psig_ptr[sig]) || !(cv = (CV*)SvRV(PL_psig_ptr[sig])) |
84902520 | 2580 | || SvTYPE(cv) != SVt_PVCV) |
22c35a8c | 2581 | cv = sv_2cv(PL_psig_ptr[sig],&st,&gv,TRUE); |
84902520 | 2582 | |
a0d0e21e | 2583 | if (!cv || !CvROOT(cv)) { |
599cee73 | 2584 | if (ckWARN(WARN_SIGNAL)) |
9014280d | 2585 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "SIG%s handler \"%s\" not defined.\n", |
22c35a8c | 2586 | PL_sig_name[sig], (gv ? GvENAME(gv) |
00d579c5 GS |
2587 | : ((cv && CvGV(cv)) |
2588 | ? GvENAME(CvGV(cv)) | |
2589 | : "__ANON__"))); | |
2590 | goto cleanup; | |
79072805 LW |
2591 | } |
2592 | ||
22c35a8c GS |
2593 | if(PL_psig_name[sig]) { |
2594 | sv = SvREFCNT_inc(PL_psig_name[sig]); | |
84902520 | 2595 | flags |= 64; |
df3728a2 | 2596 | #if !defined(PERL_IMPLICIT_CONTEXT) |
27da23d5 | 2597 | PL_sig_sv = sv; |
df3728a2 | 2598 | #endif |
84902520 | 2599 | } else { |
ff0cee69 | 2600 | sv = sv_newmortal(); |
22c35a8c | 2601 | sv_setpv(sv,PL_sig_name[sig]); |
88e89b8a | 2602 | } |
e336de0d | 2603 | |
e788e7d3 | 2604 | PUSHSTACKi(PERLSI_SIGNAL); |
924508f0 | 2605 | PUSHMARK(SP); |
79072805 | 2606 | PUSHs(sv); |
79072805 | 2607 | PUTBACK; |
a0d0e21e | 2608 | |
1b266415 | 2609 | call_sv((SV*)cv, G_DISCARD|G_EVAL); |
79072805 | 2610 | |
d3acc0f7 | 2611 | POPSTACK; |
1b266415 | 2612 | if (SvTRUE(ERRSV)) { |
1d615522 | 2613 | #ifndef PERL_MICRO |
983dbef6 | 2614 | #ifdef HAS_SIGPROCMASK |
1b266415 NIS |
2615 | /* Handler "died", for example to get out of a restart-able read(). |
2616 | * Before we re-do that on its behalf re-enable the signal which was | |
2617 | * blocked by the system when we entered. | |
2618 | */ | |
2619 | sigset_t set; | |
2620 | sigemptyset(&set); | |
2621 | sigaddset(&set,sig); | |
2622 | sigprocmask(SIG_UNBLOCK, &set, NULL); | |
2623 | #else | |
2624 | /* Not clear if this will work */ | |
2625 | (void)rsignal(sig, SIG_IGN); | |
5c1546dc | 2626 | (void)rsignal(sig, PL_csighandlerp); |
1b266415 | 2627 | #endif |
1d615522 | 2628 | #endif /* !PERL_MICRO */ |
5df617be | 2629 | DieNull; |
1b266415 | 2630 | } |
00d579c5 | 2631 | cleanup: |
84902520 | 2632 | if (flags & 1) |
3280af22 | 2633 | PL_savestack_ix -= 8; /* Unprotect save in progress. */ |
ac27b0f5 | 2634 | if (flags & 4) |
3280af22 | 2635 | PL_markstack_ptr--; |
84902520 | 2636 | if (flags & 16) |
3280af22 | 2637 | PL_scopestack_ix -= 1; |
84902520 TB |
2638 | if (flags & 64) |
2639 | SvREFCNT_dec(sv); | |
533c011a | 2640 | PL_op = myop; /* Apparently not needed... */ |
ac27b0f5 | 2641 | |
3280af22 NIS |
2642 | PL_Sv = tSv; /* Restore global temporaries. */ |
2643 | PL_Xpv = tXpv; | |
53bb94e2 | 2644 | return; |
79072805 | 2645 | } |
4e35701f NIS |
2646 | |
2647 | ||
51371543 | 2648 | static void |
35a4481c | 2649 | restore_magic(pTHX_ const void *p) |
51371543 | 2650 | { |
48944bdf | 2651 | MGS* mgs = SSPTR(PTR2IV(p), MGS*); |
51371543 GS |
2652 | SV* sv = mgs->mgs_sv; |
2653 | ||
2654 | if (!sv) | |
2655 | return; | |
2656 | ||
2657 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) | |
2658 | { | |
f9701176 NC |
2659 | #ifdef PERL_COPY_ON_WRITE |
2660 | /* While magic was saved (and off) sv_setsv may well have seen | |
2661 | this SV as a prime candidate for COW. */ | |
2662 | if (SvIsCOW(sv)) | |
2663 | sv_force_normal(sv); | |
2664 | #endif | |
2665 | ||
51371543 GS |
2666 | if (mgs->mgs_flags) |
2667 | SvFLAGS(sv) |= mgs->mgs_flags; | |
2668 | else | |
2669 | mg_magical(sv); | |
2670 | if (SvGMAGICAL(sv)) | |
2671 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
2672 | } | |
2673 | ||
2674 | mgs->mgs_sv = NULL; /* mark the MGS structure as restored */ | |
2675 | ||
2676 | /* If we're still on top of the stack, pop us off. (That condition | |
2677 | * will be satisfied if restore_magic was called explicitly, but *not* | |
2678 | * if it's being called via leave_scope.) | |
2679 | * The reason for doing this is that otherwise, things like sv_2cv() | |
2680 | * may leave alloc gunk on the savestack, and some code | |
2681 | * (e.g. sighandler) doesn't expect that... | |
2682 | */ | |
2683 | if (PL_savestack_ix == mgs->mgs_ss_ix) | |
2684 | { | |
2685 | I32 popval = SSPOPINT; | |
c76ac1ee | 2686 | assert(popval == SAVEt_DESTRUCTOR_X); |
51371543 GS |
2687 | PL_savestack_ix -= 2; |
2688 | popval = SSPOPINT; | |
2689 | assert(popval == SAVEt_ALLOC); | |
2690 | popval = SSPOPINT; | |
2691 | PL_savestack_ix -= popval; | |
2692 | } | |
2693 | ||
2694 | } | |
2695 | ||
2696 | static void | |
35a4481c | 2697 | unwind_handler_stack(pTHX_ const void *p) |
51371543 | 2698 | { |
27da23d5 | 2699 | dVAR; |
e1ec3a88 | 2700 | const U32 flags = *(const U32*)p; |
51371543 GS |
2701 | |
2702 | if (flags & 1) | |
2703 | PL_savestack_ix -= 5; /* Unprotect save in progress. */ | |
2704 | /* cxstack_ix-- Not needed, die already unwound it. */ | |
df3728a2 | 2705 | #if !defined(PERL_IMPLICIT_CONTEXT) |
51371543 | 2706 | if (flags & 64) |
27da23d5 | 2707 | SvREFCNT_dec(PL_sig_sv); |
df3728a2 | 2708 | #endif |
51371543 | 2709 | } |
1018e26f NIS |
2710 | |
2711 |